Which of the Which of the following is true for f(x) = 5cos(x) +1?
The period of the function is 10 pi.
The function has an amplitude of 2.5.
A zero of the function is (StartFraction pi Over 2 EndFraction, 0).
The range of the function is the set of real numbers Negative 4 less-than-or-equal-to y less-than-or-equal-to 6.following is true for f(x) = 5cos(x) 1?