last one

Question

last one

anonymous · Answer

@misty1212

anonymous · Answer

@alisyed5865

misty1212 · Answer

HI!!

misty1212 · Answer

did you get the first derivative? it is a polynomial so it should be pretty easy

anonymous · Answer

4x^3+4x

freckles · Answer

I think the question is incomplete

misty1212 · Answer

ok so now we want to know where it is positive and negative

misty1212 · Answer

lol so it is! i read "increasing" but it could be anything huh?

freckles · Answer

but yeah it is probably thinking about f is increasing or decreasing

freckles · Answer

the question thinks for itself lol

misty1212 · Answer

find the open interval on where the function is itself

anonymous · Answer

would i put it = to zero to find the open interval

misty1212 · Answer

lol no silly if you put the derivative equal to zero and solve you will get a number or two, not an interval
reread the question in the book or on line or wherever it is and find out what it is asking
the thing you wrote above is not the question,  it is missing something

anonymous · Answer

that the question my teacher gave me . no more information

misty1212 · Answer

use the first derivative test to determine the open intervals on which f is ....

anonymous · Answer

yeah that all she gave me

misty1212 · Answer

then you can't do it

anonymous · Answer

i will ask tommorow but thank you for the lep

anonymous · Answer

help

misty1212 · Answer

you sure there is not some word there
like "increasing" maybe?