Regression Models Answers

The table represents the temperature of a cup of coffee over time.

The data in the table compares x, the number of pages in a chapter, to y, the amount of time, in minutes, spent reading. The function y = 0.86x – 0.09 models the data in the table.

The table compares x, the number of minutes of television Sam watched each day, to y, the number of minutes she spent exercising. The function y = –0.78x + 95 models the data in the table.

Janna is making a prediction of the frequency of a key that is 12 keys from middle C.

The function f(t) = 349.2(0.98)t models the relationship between t, the time an oven spends cooling and the temperature of the oven.

The table shows the population of a small town over time. The function P = 10,550(1.1)x models the population x years after the year 2000.

Marta’s mother shared a funny video of their cat on the Internet. The total number of people who had viewed the video over the first 30 days could be modeled using the function f(x) = 33(1.3)x where x is the number of days the video has been online.

The quadratic regression graphed on the coordinate grid represents the height of a road surface x meters from the center of the road.

The table shows the relationship between time spent running and distance traveled.

The data in the table represents a company’s profit based on the number of items produced.