Question

Which function has the graph shown?

A.y=3cos4x
B.y=csc(x)-1
C.y=3cos(-x)
D.y=-2-cos(x-pi)

Answer 1

Well if it goes through (0,0) then it sin but for this one it starts at (0,3) so that means it is ?

Answer 2

csc?

Answer 3

Close but it is Cos remember ?

So now we got that, how do we find the points? What do we do with the x?

Answer 4

would the answer be D?

Answer 5

You tell me, where does the point start on the Y axis?

Answer 6

3 right?

Answer 7

Correct so what would it start up as?

2cos or 3cos?

Answer 8

3 cos(-x)=3cos(x) is the answer

Answer 9

3cos

Answer 10

Lets do this. To find the x's we have to do what with the x's

We have to set them equals to this equation'

4x=0 and 4x=2pi

Answer 11

Hello! :)
You seem more than willing to help around here, which is mighty fine since we need all the help we can get :)
But beware! This site has a policy for "Give Help, Not Answers"
And breaking such rules could get you kicked off the site…
It's great to see another helper among us, so it would be sad if you got in trouble for giving out answers. :( How about instead, you can try guiding people through their questions? :3
Thanks for being awesome and I'll see ya around! ^_^

@eliesaab

Answer 12

The graph has period 2 Pi

Answer 13

correct @SIMPLIGIC

Solve for x in the above problem

Answer 14

Amplitude of 3

Answer 15

is it y=3cos(-x)??

Answer 16

Yes

Answer 17

COrrect :D

Answer 18

thank you :D

Answer 19

Welcome..Sorry if i was going long just trying to make sure you understand the concept and not just give the answer :D

Answer 20

you have a good day :D and thats good for teaching me in a way haha

Answer 21

Just remember you can always use the formula for sin and cos etc etc its longer but you will understand it better for now :D

Answer 22

Relax @jagr2713 , I thought you were giving too many guidance that the original poster was confused. That is also a straight forward problem.

Answer 23

Thank you for helping @eliesaab