Find the period, range, and amplitude of the cosine function.
y=−4cos8x
𝑦
=
−
4
cos
8
𝑥
(1 point)
Responses
period: 12π
1
2
𝜋
, range = −4≤y≤4
−
4
≤
𝑦
≤
4
, amplitude = -4
period: 1 half pi, range = −4≤y≤4
−
4
≤
𝑦
≤
4
, amplitude = -4
period: 14π
1
4
𝜋
, range = −4≤y≤4
−
4
≤
𝑦
≤
4
, amplitude = 4
period: 1 fourth pi, range = −4≤y≤4
−
4
≤
𝑦
≤
4
, amplitude = 4
period: 14
1
4
, range = −4≤y≤4
−
4
≤
𝑦
≤
4
, amplitude = 4
period: 1 fourth, range = −4≤y≤4
−
4
≤
𝑦
≤
4
, amplitude = 4
period: 12
1
2
, range = −4≤y≤4
−
4
≤
𝑦
≤
4
, amplitude = -4
The correct response is:
period: 1/4π, range = −4≤y≤4, amplitude = 4