Questions regarding the plotting or graphing of functions. Questions about graphs with vertices and edges should use the (graph-theory) tag instead. (STUB)

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1answer
19 views

When making a line graph, can you start at 4000 on the y axis and then continue up in 500's?

When making a line graph, can you start at 4000 on the y axis and then continue up in in the increments of 500? E.g., 4000 at the bottom then, goes up to 4500 then 5000 etc.
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0answers
13 views

Axis scale where intervals get further apart

I'm trying to automate a water supply pressure and flow rate graph. Traditionally these graphs use some weird axis scale where the intervals become further apart as the numbers get larger. Sort of ...
0
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1answer
18 views

Plot my own function 'in two variables'

I have matlab function in two variables say $function_{something}(t)$ where $t$ is of size $2 \times k$, this is to allow to evaluate $k$ times in two values. So my output is then a $k \times 1$ ...
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1answer
23 views

How can you plot straight lines in Matlab using only values on x axis and the gradient of each line?

I'm trying to plot characteristics for the Burgers Equations. But I have to plot them only using the inbuilt function plot. It seems like a fairly straight forward problem but I still cant solve it
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2answers
17 views

Build the graph of a function with absolute value.

The function is: And my idea of graphic (i did it using two graphs and deleting some parts) Is it correct?
-2
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1answer
45 views

Math quiz ambiguity [duplicate]

This is a picture of my math quiz in which I got a question wrong. I feel I should not lose points as the question is to ambiguous. I assumed that if one point lied above x-axis then that would ...
0
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1answer
35 views

Graph the function $f(x) = \frac{9}{14}x^\frac{1}{3}(x^2 - 7)$ by finding all critical points and inflection points.

I want to graph the function $f(x) = \frac{9}{14}x^\frac{1}{3}(x^2 - 7)$. To start, I know I need the derivative, $f'(x)$, because I want to find the critical points. I found that $$f'(x) = ...
1
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0answers
17 views

Plot the characteristics for Burgers equation

I'm trying to plot the characteristics for the following problem. So far I have managed to find all the gradients for the lines from each value of x0. But I'm not sure how to plot it. It seems like ...
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2answers
29 views

Given a collection of consecutive points, can I find a graph equation that goes through all of them?

As said in the title I have a collection consecutive of points on R²(x0, x1, x2, etc.), and I am trying to find one continuous function, that defines a graph that passes through all of them. I've ...
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4answers
77 views

How many roots does this exponential equation have?

I have the following course assignment: Calculate the number of roots of the following equation: $ e^x = 6 \cdot \ln(x^2 + 1) $ What I have done so far: $ f(x) = e^x - 6 \cdot \ln(x^2 + 1) $ I will ...
3
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0answers
94 views

Graphs of interesting integrals of the form: $\int \sin^a(x^a)\cos^a(x^a)$

Here are a few graphs of the form:- $$\int \sin^a(x^a)\cos^a(x^a)dx$$ Where $a$ is an even, positive integer. $a = 2$ $a = 4$ $a = 6$ Now, a few graphs of the form:- $$\int ...
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1answer
15 views

Should the following 2 graphs differ?

So , I had this question that will the following 2 graphs differ from each other, as $\csc x$ and $\sec x$ can become not-defined at values like $x=0$ or $x=90$. $$y=\lvert\cos x\rvert+\lvert\sin ...
0
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1answer
49 views

Can this be a periodic function

$$F(x) = \sqrt{\sin x + \cos x}$$ I graphed this function and it seemed to be periodic but my textbook says that it's not. Is any other rule it's breaking...?
1
vote
1answer
39 views

Name of this type of plot? Does anyone know how to produce it

Does this type of polar plot have a name? Does anyone know how to produce it in octave 3.8.1 which is compatible with matlab? Link to site
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2answers
104 views

Level sets for the function $f$

Describe the graph of the function $$f: \mathbb{R}^2 \to \mathbb{R}, (x, y) \to \max (|x|, |y|)$$ computing some level sets and some intersections. I have done the following: The level curves are ...
1
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3answers
42 views

Describe the graph of the function: Level Sets, Intersections

Describe the graph of the function $$f: \mathbb{R}^2 \rightarrow \mathbb{R}, (x, y) \rightarrow |y|$$ computing some level sets and some intersections. I have done the following: The level curves ...
0
votes
1answer
36 views

Level set for the function

Draw or describe the level surface and an intersection of the graph for the function $$f: \mathbb{R}^3 \rightarrow \mathbb{R}, (x, y, z) \rightarrow x^2+y^2$$ I have done the following: The level ...
0
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1answer
17 views

Correct way to describe this geometrical transformation

I am trying to describe to geometrical transformation that maps the graph of y = sinx onto the graph y = 2sinx. I know what the two separate graphs look like, and I could draw them, the only ...
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2answers
201 views

Number of solutions of arithmetic funtion's equation.

Say, an equation is given below \begin{equation} 2\pi(x) - \pi(2x)=\omega(x) \end{equation} where $x$ is a positive integer, $\pi(x)$ is the prime-counting function, and $\omega(x)$ is the number of ...
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0answers
17 views

Graph analysis and phenomenon modeled by the curve $S(t)= 1/(1+e^{-t})$

So the question is: The graph looks like: So where I stand with this question is that I am struggling to find something that it models. Once I find some phenomenon that it looks similar to, I ...
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0answers
24 views

Bounds of a section of a cylinder

Am I right in saying that this section of cylinder could be bounded so that $x\geq0 $, $0\leq y \leq 2$, $z \geq 0$ or $x\leq0$, $0\leq y \leq 2$, $z \geq 0$ ?
2
votes
2answers
30 views

Graphing a plane

For $x\geq 0, y\leq 0, z\geq 0$ I understand how to graph each trace, and that the traces intercept each other on the coordinate axis but I do not understand why the plane is represented by the ...
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0answers
23 views

How to turn this into a straight line

Right now, I am trying to turn my graph (which looks like a exponential graph) into a straight line graph, which starts at the origin $(0,0)$. How would I do this? My values are given in the ...
0
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1answer
19 views

How do I determine the target coordinates based on an angle?

I know my object is at a set of coordinates for example (150,480), and I need to move it x number of units at a y degree angle. Z What is the formula to calculate this? I slacked in math after ...
0
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1answer
19 views

Rational Functions

Part 1: You are planning a school field trip that costs $120$ dollars to rent the bus. A. How much will it cost per student if $10$ students go? $12$? $15$? B. Write an equation to represent the ...
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0answers
26 views

Parabolic Graphs

How to draw these parabolic curves. $y^2 - 2y -x -1 = 0$ $x^2 - 6x - 2y + 5 = 0$ As its easy to draw parabola whose vertex is at origin. But so much confusion in these graph. Help me out.
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2answers
36 views

Finding the formula for a parabola and its antiderivative graph.

For part a) i have : $f'(x)= 3x^2-18x+15$ Can someone provide a straightforward, simple explanation for part b)? Best if no hints are given just an answer with the explanation please.
2
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2answers
74 views

Length of arc paradox

Premise 1: Line is composed of points. Premise 2: Each point is associated with specific co-ordinates (x,y). Premise 3: Lines of equal length have equal number of points. Lines of greater length ...
1
vote
1answer
27 views

Calculating values for cubic Bezier curve

I'm trying to use cubic bezier curves for some non-linear animations in my iOS app. Let's say I'm animating position of some element on the screen. I'm using this curve from cubic-bezier.com for ...
0
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0answers
20 views

graphical flower and rule of thumb from central limit theory question

Does the flower graph have a name? I plotted the shape which is the set A={(x,y/x)} for all whole numbers of x>0 with ...
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0answers
13 views

Moving Logarithmic function equation plotted on log log paper up or down on the y axis

I'm hitting a stump here. I have a logarithmic function plotted on log log paper so it's a straight line. So let's say I have this entire line plotted out on the log log paper....how would I simply ...
0
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1answer
49 views

How to draw the graph of $y=(2x^2+13x+9)/(6x+3)$

We haven't learnt how to design the graphic when the denominator has x, and it cannot be simplified. Can you just tell me the steps or lead me to a web address?
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2answers
51 views

Does there exists values of x for $f(x) = x^{2} e^{\frac{1}{(1-x^2)}}$ when $f(x)=1$ in $(-1,1)$

Given $ \; \large{f(x)=x^{2} e^{\frac{1}{(1-x^2)}}} \; \; $ has solutions for $ f(x)=1 $ in $(-1,1)$. I think there are no solutions, but I am not sure how to prove it. Can anyone please help? Thanks ...
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3answers
48 views

How do I come up with a continuous function between two functions?

Say $y = 0$ when $x \leq 0$, and $y = 1$ when $x \geq 1$. I want to create a function between these two that still makes everything continuous (continuous at $x = 0$ and $x = 1$) and is monotonically ...
0
votes
1answer
22 views

Find longer side of a rectangle with respect to another rectangle

So I have two rectangles: Rectangle R1 with width r1w and height r1h Rectangle R2 with width r2w and height r2h I can find the slope/aspect ratio of the two ...
1
vote
4answers
75 views

Help finding turning points to plot quartic and cubic functions

My teacher assigned us some graphing homework. I know how to graph all of them manually all except these two $f_1(x)=x^4-x^3-4x^2$ $f_2(x)=\frac{1}{2}x^3+2x^2-8x-2$ When i asked him how he said it ...
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0answers
16 views

How to plot curve instead of lines in the below figure?I am using Log scale in x axis.

How to plot curve instead of lines in the below figure?I am using Log scale in x axis.
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0answers
8 views

How to calculate an angled increment on a graph

I'm trying to figure out how to calculate the values needed to make an angle. Like if I have a object at {1,1} and it needs to travel at a 45° to get to {5,5} I would have it increment up the spaces ...
2
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0answers
28 views

Graphing the derivative from a graphed function

For the graphs of $f(x)$ make a sketch of the graph $f'(x)$ Here are the sketches I have so far. The graphs on the top row are the original functions. Did I graph these correctly?
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2answers
55 views

Formula to best fit a rectangle inside another by scaling

I am very week in Math. I am a web programmer, and usually my work does not involve too much math - its more of putting records into database, pulling out reports, making those fancy web pages etc ...
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4answers
58 views

Basic question about $y=mx$

The graph of equation $y=mx$ is a straight line... a) Parallel to the $x$-axis b) Parallel to the $y$-axis c) Passing through the origin d) That coincides with the $x$-axis This was a question in ...
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2answers
86 views

How to plot $\frac{2x-4}{1+x^2}$

Can someone suggest me how to plot this function (without any software)? $$\frac{2x-4}{1+x^2}$$ I have found out such points as: $(0,-4)$ and $(2,0)$ I know that $y = 0$ is horizontal asymptote ...
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2answers
30 views

Understanding the translation of a graph (horizontally)

I have been having trouble understanding the translation of a graph. I understand the 'rule in the sense that the '$+$' shifts to the left and the '$-$' to the right when dealing with something like ...
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0answers
27 views

Use a table of values to graph each function.

The function is : $y=-x^2+7$ Please help! This is Algebra 1, and we are going over graphing quadratic functions. My teacher is unavailable, so if anyone can explain how to solve these types of ...
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0answers
22 views

Transformation/operation to collapse a series of similar lines into a set of constants?

I have a dataset that can be represented in a matrix form as: $$ Y = \begin{bmatrix} y_{11} & y_{12} & y_{13} & \cdots & y_{1j} \\ y_{21} & y_{22} & y_{23} & \cdots & ...
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2answers
40 views

Constructing a parabola from two coordinate values and a peak height.

I am trying to create a parabola function that mimics projectile trajectory. It will input the following: 2 xy coordinates (the starting projectile position and the landing projectile position) ...
0
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1answer
18 views

find the points on curve that are almost equal

How do I find the points pointed by the arrow in the graph. I.e. the points where the slope of curve is almost $0$.
1
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4answers
84 views

Best program for 3D plotting

I've hit a roadblock with pgfplots where it has difficulty plotting multiple functions at the same time in 3D. As it states in the manual on page 114, "it cannot combine different \addplot commands, ...
0
votes
1answer
20 views

Find a function from graph

I have a greater "trouble". I wanna learn more about "graphs". On this webpage I found some nice graphs in heart shape. And they where written as functions. Another graph I found was "the batman ...
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2answers
57 views

What power of $3$ is $4$?

I am trying to find the point where $y=5$ intersects the curve $$y=1+3^x$$ My working so far: $$5=1+3^x$$ $$4=3^x$$ How do I work out this last step accurately?