If you explain properly I'll give you branliest. Ron is planning for the back-to-school rush at his store. Last year he estimated that he would need 168 notebooks, but he sold 200 notebooks. Explain how Ron can find the percent error of his estimate.

First find the error by finding the difference between the estimate and exact value. Then find the absolute value of the error. Set up a ratio with the absolute error to the exact value. Divide to find the decimal and multiply by 100 to find the percent.

f(x) has value 150 at x= 0

and 0 at x= 3

so d(f(x))/dt = slope = -150/3 = -50