chaotic_butterflies one year ago Use the graph below to answer the question that follows: (image below) What trigonometric function represents the graph?

1. chaotic_butterflies

2. chaotic_butterflies

@Lyralei this problem is similar to the one you just helped me with, but it's not quite the same. If you're not too busy, could you help?

3. anonymous

2cos(x)

4. anonymous

Know why?

5. chaotic_butterflies

Oof... I thought it was sin, why is it cos?

6. anonymous

Cosine graph gives|dw:1434306518767:dw|

7. anonymous

Sine graph|dw:1434306557475:dw|

8. chaotic_butterflies

I see the flaw in my reasoning

9. anonymous

$f(x)=(Amplitude)\cos[(Period)]$ Now, the Amplitude reaches 2, So you get $f(x)=2\cos[x]$

10. chaotic_butterflies

Ah! Thanks!

11. anonymous

No problem!