The graph shows the number of paintballs, y, a machine launches in x seconds:



Which expression can be used to calculate the rate per second at which the machine launches the balls?

A. 32/4
B. 4/32
C. 128/4
D. 4/128

The graph shows the number of paintballs y a machine launches in x seconds Which expression can be used to calculate the rate per second at which the machine la class=