Question

Help please !!! How do i do d.

Answer 1

@Directrix

Answer 2

@hartnn

Answer 3

@freckles

Answer 4

v(t) = 3(t-3)(t-1) right?

Answer 5

yes

Answer 6

find the critical points by solving
3(t - 3)(t - 1) = 0

Answer 7

then you can find the values of t when v(t) > 0

Answer 8

what are the 2 values of t when v(t) = 0?

Answer 9

t = 3 and t = 1 for v(t) = 0

Answer 10

Now one way to do this is to find values of v(t) when t < 1 , 2<t < 3, and t > 3

Answer 11

sorry thats 1 < t < 3

Answer 12

brb..

Answer 13

- find if v(t) is > 0 or less than 0.

eg when t = -2 v(t) = 3(-2-3)(-2-1) which is positive

so t<1 for positive direction

Answer 14

now check the other 2 intervals and you'll get the answer

gotta go right now.