Question

HELP: Determine the values of where the tangent line is horizontal for the function:

Answer 1

take the derivative, and set it equal to zero

Answer 2

then plug into original function?

Answer 3

nope, it wants x values, so solve for = 0, and that's your answer

Answer 4

oh ok.

Answer 5

example

f(x) = x^2 + 2x
f'(x) = 2x+2
2x+2 = 0
x = -1
so f(x) has horizontal tangent at x = -1

Answer 6

@zzr0ck3r thank you=]

Answer 7

np

Answer 8

I will note that in most cases when they say "value" that implies y, but in this situation they said "x value".

Answer 9

to take the derivative: we must use the power and quotient rule for this question right?

Answer 10

i missed up on something, hats not coming out right..