Consider the following equations:

Equation 1: y = sin(x + 4) - 1

Equation 2: y = 4sin0.75(x - 30⁰) + 7

Equation 3: y = 5sin6x - 3

Equation 4: y = 0.25sin5(x + 45⁰)

a) The equation having no phase shift is:

b) The equation with the largest amplitude is:

c) The equation with a period of 480 Degrees is:

d) The equation with a midline above the x-axis is:

e) The equation with the largest maximum value is:

The question relates to sinuosdial functions. I wanted to make sure my answers were correct before submitting, so explanations as to how the answer was made would be appreciated. Thanks.