Question

Use the cosine function shown in the graph below. Identify the following and then write an equation to represent the cosine function. midline amplitude period phase shift equation

Answer 1

The required cosine function is;

$y=2\cos (8x)+2$

The midline of the cosine function is; y = 2

$\text{The period of the cosine function is }\frac{\pi}{4}$