Question

Need help graphing a sine function!!!!

A sine function has the following key features:
Period = 4
Amplitude = 4
Midline: y = 1
y-intercept: (0, 1)

The function is not a reflection of its parent function over the x-axis.

Use the sine tool to graph the function. The first point must be on the midline and the second point must be a maximum or minimum value on the graph closest to the first point.

Answer 1

let the function

y = asin(bx)+c

amplitude = 4 so a=4

midline y=1 so c=1

period = 4 so

4b=2π

b=π/2

hence the desired function is

y = 4sin(πx/2) + 1