Which of the following are equivalent to the function y = -3sin x + 2? Check all that apply.
O A. y=-3sin x-2
B. y=-3cos(x-7) +2
c. y = 3cos(x + 5)-2
D. y = 3sin(-x) + 2

step-by-step explanation:

first, eliminate the parenthesis:

3

x

+

2

−

4

x

second, group like terms:

3

x

−

4

x

+

2

third, combine like terms:

(

3

−

4

)

x

+

2

→

−

1

x

+

2

→

−

x

+

2

i believe the correct answer is b.