Question

I need help with part b.

Answer 1

@dan815 @jigglypuff314

Answer 2

I think the maximum value is 2 and the minimum value is -2. but i don't know how to find the zeros

Answer 3

zeros is where the function crosses the x axis :)

Answer 4

So what does that mean for this?

Answer 5

here, I drew red dots where the "zero"s are :)
http://prntscr.com/6zaldu

Answer 6

I see that but what are their values?

Answer 7

http://prntscr.com/6zamly
I believe the boxes are in increments of pi/4

Answer 8

How can I find the values?

Answer 9

So the first one is pi/8?

Answer 10

that's right!

Answer 11

What would be the second one?

Answer 12

pi/8 + pi/4 =

Answer 13

3pi/8?

Answer 14

Was I right about the maximum and minimum values?

Answer 15

yes :) and yes ^_^

Answer 16

Perfect thank you so much!

Answer 17

The amplitude is 4 and the period would be pi/2 right?

Answer 18

Refer to the attached plot from Mathematica 9.

Answer 19

I believe that is correct :) good job@

Answer 20

*!

Answer 21

Thank you so much for your help and nice name/profile pic

Answer 22

haha thanks ^_^