What function accurately represents the sine curve for red light?

f(x) = sin pi over 640x

f(x) = sin 640_x

f(x) = sin 320_x

f(x) = sin pi over 320x

You are constructing a histogram for scores that range from 70 to 100 in whole points. frequencies range from 3 to 10; that is, every whole-point score between 60 and 100 occurs at least 3 times, and at least one score occurs 10 times. which of these would probably be the best range and size for the score intervals along the x-axis?

Which is the graph of the function y=2(4)^x

Sketch one cycle if the cosine function y=2cos2theta