Marijuana Use The percent p of high school seniors who ever used marijuana can be related to x, the number of years after 2000, by the equation 25p + 21x = 1215.
a. Find the x-intercept of the graph of this function.
b. Find and interpret the p-intercept of the graph of this function.
c. Graph the function, using the intercepts. What values of x on the graph represent years 2000 and after?
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