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

y = -9.1
y = -4.2
y = 4.2
y = 9.1

I think it's D?

wfirfkfr/jjfi; jn; p/ojkfvlbvmkmgkgkkkgkkg

step-by-step explanation:

it is rigid.; it is isometric. ; the size is preserved.

step-by-step explanation:

a translation is called an isometry; these are transformations that preserve congruence between pre-images and images.

they are also called rigid transformations, as the only thing that can happen to a pre-image is that it is moved or turned, not stretched or shrunk.

since congruence is preserved, the size is preserved.

the answer is

a.

x = 42

y = 10

i got it down chief.