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visits member for 3 years, 8 months
seen Aug 4 '11 at 11:43

Apr
7
asked If a quadratic is reflected on the y axis, why does $b=0$?
Apr
7
revised Find equation of cubic function with gradient?
deleted 127 characters in body
Apr
7
awarded  Scholar
Apr
7
accepted Find equation of cubic function with gradient?
Apr
7
comment Find equation of cubic function with gradient?
Never mind! I got it! Thanks so much!
Apr
7
comment Find equation of cubic function with gradient?
I've got the 4 equations, but I can't figure it out from there. It's impossible to sub 3 of the equations into the fourth, as you just end up with a huge equation still with the 4 separate unknowns. What am I missing? How do I find the solution?
Apr
6
awarded  Editor
Apr
6
comment Find equation of cubic function with gradient?
Sorry, I've added coordinates!
Apr
6
revised Find equation of cubic function with gradient?
deleted 91 characters in body
Apr
6
asked Find equation of cubic function with gradient?
Apr
6
asked Find equation of quadratic when given tangents?
Mar
14
awarded  Student
Mar
14
asked How to check if derivative equation is correct?
Mar
13
comment Calculate derivatives on Casio Graphics Calculator?
Thanks! I can find the numerical value of the derivative using that function, but what I really need is the actual function itself. Is there any way I can (quickly) work backwards from the numerical value to confirm the derivative I have calculated manually is correct?
Mar
13
comment Calculate derivatives on Casio Graphics Calculator?
Casio CFX-9850GC Plus
Mar
13
asked Calculate derivatives on Casio Graphics Calculator?