Question

MEDAL!!!!!!!
Use the graph below to answer the question that follows:

Answer 1

answer choices
f(x) = -2 cos (x- pi/2)
f(x) = -2 sin (x-pi/2)
f(x) = 2 cos(x-pi/2)
f(x) = 2 sin( x-pi/2)

Answer 2

Hint:
when x = 0

2*sin of (x - pi/2) will be 2 sin -pi/2 which will give -2

but this graph starts form y=2

so its the reflection of 2 sin(x - pi/2)

Answer 3

what is the sign of the reflection in x axis?

Answer 4

POSTIVE

Answer 5

no - the reflection of 2 sin (x - pi/2) in x axis

Answer 6

sign changes....

Answer 7

so the answer is the second choice

Answer 8

yes
negative 2

Answer 9

second choice

Answer 10

can i ask another question

Answer 11

sorry i have to go right now

Answer 12

ok