Introduction to Modeling with Functions Answers

Alicia bought a notebook and several erasers at the student store. The graph shows the relationship between the total cost of her items and the number of erasers she purchased.

The graph represents the expected hourly revenue, in dollars, y, earned by a car wash for each decrease of x dollars in the price of a car wash.

Lindsay is creating a bridge out of dried pasta and glue. In her plans, she sketches the graph to determine the lengths of the noodles, in centimeters, needed for the arch to increase the length of the bridge in 1-centimeter increments.

The graph shows the relationship between the weight of a box and the number of books added to the box.

The graph shows the distance, in feet, required for a car to come to a full stop if the brake is fully applied and the car was initially traveling x miles per hour.

Cherie measures and records the lengths and sizes of the same style of a sandal found at a shoe store.

The graph shows the relationship between a gift card balance and the number of visits to a smoothie shop.

Which statements are true about the relationship between the depth of the snow and the height of water in the jar after the snow is melted? Select two options.

The amount of a radioactive substance remaining after t years is given by the function , where m is the initial mass and h is the half-life in years. Cobalt-60 has a half-life of about 5.3 years. Which equation gives the mass of a 50 mg Cobalt-60 sample remaining after 10 years, and approximately how many milligrams remain?

Julia finds that the data in the table can be modeled by the function y = 5(4)x.