Question

HELP ASAP ILL GIVE BRAINIEST!!!


What are the amplitude, period, and phase shift of the given function? f(t)=2.3cos0.25pi


amplitude: 2.3; period: 0.25; phase shift: 1


amplitude: -2.3; period: 4; phase shift: 0


amplitude: 2.3; period: 2; phase shift: −1


amplitude: 2.3; period: 8; phase shift: 0

Answer 1

Answer: opption D

Step-by-step explanation:

Answer 2

Answer:

The answers amplitude is 2.3 the period is 8 and the phase shift is 0 since there is no C as shown below

Step-by-step explanation:

$y = a \cos(bx - c) + d$

$phase = |a| = |2.3| = 2.3$

$period = \frac{2\pi}{b} \: so$

$2\pi \div \frac{1}{4} \pi = 2\pi \div \frac{\pi}{4} = \frac{2\pi}{1} \times \frac{4}{\pi} = 8$

$phase \: shift = c = 0$