Question

HELP HOW DO I FIND THE B VALUE OF THIS

Answer 1

Answer:

b = $\frac{8}{3}$

Step-by-step explanation:

period = $\frac{2\pi }{b}$, that is

b = $\frac{2\pi }{period}$ = $\frac{2\pi }{\frac{3\pi }{4} }$ = 2π × $\frac{4}{3\pi }$ = $\frac{8}{3}$

Answer 2

Answer:

f(x) = 4cos(8/3)x - 3.

The missing space is 8/3.

Step-by-step explanation:

The general form is  f(x) = Acosfx + B    where A = the amplitude, f = frequency and B is the vertical shift..

Here A is given as  4,  B is - 3 and the frequency f = 2 π / period  =

2π / (3π/4)

= 8/3.

So the answer is f(x) = 4cos(8/3)x - 3.