I NEED HELP PLEASE, THANKS! :)

 A

Step-by-step explanation:

The standard form of a cosine equation is: y = A cos (Bx - C) + D  where

Amplitude (A) is the distance from the center to the maxPeriod (P) is the length of the function = 2π/B  Phase Shift is the distance the max is moved from the y-axis = C/BCenter (D) is the imaginary line between the max and min

Plot the points (see graph below).

A = 28

Phase Shift = 7 = C/B

                     

D = 49

Input the values of A, B, C, and D into the standard form of a cosine equation to get:

You need the internet to you

The right answer is option d.