Question

A) according to the linear model what percentage of high school seniors applied to more than three college in 2010?

Answer 1

A)

In order to find the percentage for the year 2010 using the linear model, we need to use the value x = 30 in the function f(x), because f(x) represents a linear model and x represents the number of years after 1980.

So, calculating f(30), we have:

$\begin{gathered} f(x)=x+25 \\ f(30)=30+25 \\ f(30)=55 \end{gathered}$

Therefore the percentage is 55%.