help with interval directions? (attachment)

Question

anonymous · Answer

attachment

ipwnbunnies · Answer

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?

anonymous · Answer

yeah

ipwnbunnies · Answer

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!

ipwnbunnies · Answer

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

anonymous · Answer

yeah im doing it now

ipwnbunnies · Answer

Cool, just checking, sorry lol.

anonymous · Answer

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

ipwnbunnies · Answer

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

anonymous · Answer

3(t-1)t

ipwnbunnies · Answer

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

ipwnbunnies · Answer

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