The function f(x) = (x - 4)(x - 2) is shown. What is the range of the function?
O all real numbers less than or equal to 3
O all real numbers less than or equal to -1
O all real numbers greater than or equal to 3
all real numbers greater than or equal to -1

Period is the time it takes for one “cycle” to complete. in the parent sine function, period is 2*pi since sin(0) = 0, sin(pi/2) = 1, sin(pi) = 0, sin(3pi/2) = -1, and sin(2pi) = 0. at that point, the sequence repeats itself. i’m not sure if your graph is similar to the sine function since you didn’t provide a picture, but you can find the period by looking at a graph.