Question

What is the amplitude, period, and phase shift of f(x) = −4 sin(2x + π) − 5

Answer 1

Amplitude = −4; period = 2π; phase shift: x = negative pi over two

Amplitude = −4; period = π; phase shift: x = pi over two

Amplitude = 4; period = π; phase shift: x = negative pi over two

Amplitude = 4; period = 2π; phase shift: x = pi over two

Answer 2

hint : amplitude measures distance, distance can never be negative

Answer 3

C?

Answer 4

Yes! good job !!