Question

PLEASE HELP ME WITH A CALC QUESTION! MEDAL FAN AND TESTIMONIAL!!

Answer 1

if f'>0 then f is increasing
if f'<0 then f is decreasing
---
all I was trying to get you to see is R looks like it is increasing so so R' ________
BUT I would like to add something after this...IT looks like R is increasing...There is no way to tell what is going in between t=0 to t=2 or t=2 to t=3 or t=3 to t=7 or t=7 to t=8.
For all we know R' could be 0 there because maybe for some interval on t there might be a little constant function happening...

Answer 2

that was a black up there for you to fill
the blank I'm still trying to get you fill in from yesterday

Answer 3

blank*

Answer 4

it would be decreasing?

Answer 5

use the fact if f'>0 then f is increasing
if f is increasing then f'>0

Answer 6

oh increasing

Answer 7

positive

Answer 8

>0

Answer 9

the derivative tells us if the original function is increasing or decreasing

Answer 10

if the derivative is positive then the original is increasing
if the derivative is negative the the original is decreasing

Answer 11

but I hope you understand that THE function only looks this way
it doesn't mean it is

Answer 12

like for example we have no idea what is going on the interval (3,7)

Answer 13

like maybe our function looks like this: