How do you graph the equation y> x/-3 -3

Asilkworm winds its cocoon out of one long silk fiber. to make silk thread, 3 to 10 of these silk fibers are unwound from their cocoons and combined into aa single thread with a typical length of 300 yards. choose a reasonable number of silk fibers in a thread write an equation to find the total length of the silk fibersused in 300 yards of the thread

How do i make someone brainliest? (if you answer me, i might be able to make you brainliest! )

Find the cosine function that is represented in the graph.