# Math Help - slope of curve

1. ## slope of curve

For $f(x)=5x^2$ at the point (2,20), find
a) slope of curve
b) an equation of the tangent line
c) an equation of the normal line

Here is what I have so far:
a) $m=20$
b) $y-20=20(x-2)$
c) $y-20=-\frac{1}{20}(x-2)$

Is my work correct? Thanks!

2. Originally Posted by live_laugh_luv27
For $f(x)=5x^2$ at the point (2,20), find
a) slope of curve
b) an equation of the tangent line
c) an equation of the normal line

Here is what I have so far:
a) $m=20$
b) $y-20=20(x-2)$
c) $y-20=-\frac{1}{20}(x-2)$

Is my work correct?
YES