This is a basic algebra question, I could use a little assistant with I just want guidance with symbolic rule.
A photocopier was bought for 4000 dollars and depreciates at a rate of $500 per year.
Determine a symbolic rule for the value of the copier.
Here's what I have thought: $c$ represents the cost of the printer, $x$ represents the year.
$C=4000(x)-500$
Could this be a symbolic rule?