Question

Calculus question see the attached file. The graph of f(x) is show on the interval [-2,5] state the subintervals of (-2,5) on which the derivative f'(x) is positive, using interval notation and U to denote union (See attached graph) been working on for hours need help please

Answer 1

cant download your attachment

Answer 2

my pdf opener aint working

Answer 3

I will try a different attachment

Answer 4

ok good thnx

Answer 5

I know that it is not differentiable at 3.0 because of a corner and that it has a vertical asymptote at y=0 that on the left of the graph of f'(x) it approaches - infinity and from the right it approaches infinity. The only items I am having trouble with are the questions attached. Help please!

Answer 6

the derivative will be positive on the same intervals where the function is increasing, provided of course it exists

Answer 7

so on the intervals \((2,3)\) and \((3,5)\)

Answer 8

I tried those and it said they were incorrect. Any other ideas

Answer 9

no

Answer 10

oh wait, i wrote it wrong sorry

Answer 11

Thanks for the try it is appreciated

Answer 12

it should be \((0,3)\) and \((3,5)\) i don't know where i got the 2 from. derivative will be positive on those intervals

Answer 13

and negative on \((-2,0)\)

Answer 14

Perfect. You are at hero status with me I have been working on this for hours

Answer 15

did it work?

Answer 16

It DID! YEA

Answer 17

whew
good luck

Answer 18

Thank you