Question

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

Answer 1

Answer:

Period = $\frac{\pi }{4}$

Amplitude = 4

Step-by-step 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:

$\frac{2\pi }{b}$

Replace b with 8 in the formula and solve:

$\frac{2\pi }{8} = \frac{\pi }{4}$                Simplify

So, the period is equal to $\frac{\pi }{4}$

Hope this helps!!