Question

What is the equation of the midline of the function f(x) = 5.6sin (2.6x - 4.2) - 9.1?

Answer 1

`f(x) = -9.1`

Explanation:

The midline is set on
`f(x) = -9.1`, when the sine function is equal to zero, eliminating the effect from amplitude. The midline is a horizontal line. Hence, the equation of the midline is:

`f(x) = -9.1`