Question

Find the slope of the line tangent to the curve at the given value of x

f(x)=x^2+5x at x=-6

Answer 1

f'(x)=2x+5

The question is to find f'(-6), so plug in -6 above.

Answer 2

-66? That seems off

Answer 3

2*(-6)+5

Answer 4

isnt it plus 5x?

Answer 5

I meant to put -6 in the f'(x), not f(x)

Answer 6

f'(x) is the slope of the line tangent to the curve at x.

Answer 7

so its -31?

Answer 8

f(x)=x^2+5x
f'(x)=2x+5
f'(-6)=2*(-6)+5=-12+5=-7

Answer 9

oh i see. sorry i was confused. so -7 would be the slope then right

Answer 10

Yep!

Answer 11

alright thanks!

Answer 12

Welcome^^