In 6162, find a linear function in slope-intercept form that models the given
Chapter 7, Problem 61(choose chapter or problem)
Grade Inflation in the U.S. High Schools. In recent decades, high school teachers have given higher and higher grades to students. The bar graph shows the percentage of grades of A and C for high school students entering college.
In Exercises 61–62, find a linear function in slope-intercept form that models the given description. Each function should model the percentage of the particular high school grade, P(x), of students entering college x years after 1968.
In 1968, 18% of the grades for students entering college were A (A+, A, or A-). This has increased at an average rate of approximately 0.725% per year since then.
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