Unit Test — Unit test Answers

The graph shows the exponential regression model for data representing a rabbit population after x years.

The table shows a company’s profit based on the number of pounds of food produced.

The end of a hose was resting on the ground, pointing up an angle. Sal measured the path of the water coming out of the hose and found that it could be modeled using the equation f(x) = –0.3x2 + 2x, where f(x) is the height of the path of the water above the ground, in feet, and x is the horizontal distance of the path of the water from the end of the hose, in feet.

The table shows the daily pay in dollars, f(x), earned by a salesperson who makes x number of sales.

The scatterplot shows the number of minutes spent reading (x) and the number of pages read (y) by each of seven students last night. Use the labeled points to create a linear model that predicts the number of pages that a typical student reads in x minutes. Which equation represents this linear model?

A line of best fit is drawn for the set of points shown on the graph.

The table shows the value of a savings bond that doubles in value after 5 years.