Question

What is the slope of a tangent line to
f(x) = -2x^2 - 3x + 4 , at x = -2?
Show work.

Answer 1

slope =f'(x) at x=-2

Answer 2

I have no idea how to do this,

**EDIT TO QUESTION, or explain what steps I have to take and why(if applicable)

Answer 3

take the first derivative of f(x)
f'(x)=-4x - 3
at x=-2
f'(x)=8-3=5
so the slope is 5

Answer 4

Thanks so much, I learned this on khanacademy , but wasn't sure if thats what I was suppose to do.