Regression Models Answers

The graph shows the data points in the table and the exponential regression model associated with the data. Based on the graph of the regression model, which is true?

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.

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

Juan analyzes the amount of radioactive material remaining in a medical waste container over time. He writes the function f(x)=10(0.98)x to represent the amount of radioactive material that will remain after x hours in the container.Rounded to the nearest tenth, how much radioactive material will remain after 10 hours?

Jessica plots the data points relating the amount of money she needs to repay a loan and the number of months she has been making payments. She calculates two regression models. Which is true?

The table shows the estimated number of bees, y, in a hive x days after a pesticide is released near the hive.

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.

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

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.