Question

Please help me with question 36. I don’t know the answer

Answer 1

Period =
`(\pi )/(4)`

Amplitude = 4

Explanation:

To find the answer, use the form acos(bx - c) + d:

a = -4

b = 8

c = 0

d = 0

The amplitude is the absolute value of a, so:

|a| = |-4| = 4

To find the period, use this equation:

`(2\pi )/(b)`

Replace b with 8 in the formula and solve:

`(2\pi )/(8) = (\pi )/(4)` Simplify

So, the period is equal to
`(\pi )/(4)`

Hope this helps!!