Question

Help!

Answer 1

Ok when the function is increasing that means the slope of the tangent at a particular point on the function is increasing right?

Answer 2

Yes

Answer 3

just find the interval where f'(x) is positive. f will increase on that interval.

and find the interval where f'(x) is negative. f will decrease on that interval

Answer 4

It is a quadratic, so we can use the vertex and not do all this pesky calculus stuff.

Answer 5

Is it increasing at (-inifinity, -1) U (-4, infinity) and decreasing at (-1,-4)

Answer 6

Correct

Answer 7

Actually waittt no you flipped the signs all should he positive

Answer 8

So you're saying it should be decreasing at (-infinity,1) U (44,infinity) and increasing at (1,4)

Answer 9

Noo i mean its increasing from ]inf,1[ uni ]5,inf[ and decr (1,4)

Answer 10

-inf*

Answer 11

Do you mean -inf,1 and 4, inf because thats what the answer choice says

Answer 12

Yess

Answer 13

Thats when its increasing oh yeah sorry i wrote 5 by mistake

Answer 14

Okay thank you so much!!!!

Answer 15

Anytime