Question

help with interval directions? (attachment)

Answer 1

At least they were nice enough to give critical numbers. So, this is a position function. The derivative of the position function is velocity function, right?

Answer 2

yeah

Answer 3

Cool, so get the velocity function. Because they gave you the critical #'s, perform the First Derivative Test. Whenever the velocity function is positive (y values are over 0), the particle will be moving to the right!

Answer 4

Do you know what the FDT is, or how to do it?

Answer 5

yeah im doing it now

Answer 6

Cool, just checking, sorry lol.

Answer 7

@iPwnBunnies ok i didnt get... forgot how to do that

Answer 8

Ok, I'll draw you what you can do. Do you have the velocity function, first?

Answer 9

3(t-1)t

Answer 10

Whoa, that's a strange way of writing it, but yes that is it. Give me a minute.