Question

Undergraduate enrollment at stellar university was 2,720 students in 2010. In 2015, enrollment was 3,025. Using a linear model for enrollment over time, what is the slope of the line?

Answer 1

The correct answer is 61.

Explanation:

Undergraduate enrollment at Stellar University in the year 2010 was 2720.

Undergraduate enrollment at Stellar University in the year 2015 was 3025.

Therefore in two years there was a (3025 - 2720 =) 305 increase in number of students at Stellar University.

We have to relate a linear model for enrollment over time. Let y be the enrollment and x be the time.

The linear model would look like y - 3025 =
`(3025 - 2720 )/(2015-2010)` ( x - 2015)

Thus the slope of this line is given by
`(305)/(5)` = 61.