Unit Test Answers

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

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

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

The table shows the value of an account x years after the account was opened.

The table shows the wavelength of the sound produced by keys on a piano x keys away from the A above middle C.

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

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?

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

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.