Need quick! a. find the amplitude. b. find the period. c. find the vertical shift. d. find the horizontal shift. e. find the number of cycles between 0 and 2π. f. find the equation of the graph. you must show all of your work to receive credit. check the file for the graph

The curve is shown below.
a. Amplitude
The amplitude is (1/2)(4) = 2

b. Period
The period is (π + π/8) - π/8 = π

c. Vertical shift
The vertical shift is -2

d. Horizontal shift
The horizontal shift is π/8

e. Cycles between 0 and 2π
There are 2 cycles between 0  and 2π.

f. Equation of the graph