Final answer:
The frequency of the function f(x) = -2sin(x/4) + 3 is 4 in fraction form.
Step-by-step explanation:
The frequency of the function f(x) = -2sin(x/4) + 3 can be found by looking at the coefficient in front of x. In this case, the coefficient is 1/4, which means the frequency is 1 divided by 1/4. To express this in fraction form, we can invert the denominator and multiply:
Frequency = 1 / (1/4) = 1 * (4/1) = 4
So, the frequency of the function f(x) is 4.