Jeremy turns on his GPS watch after walking 50 feet from his house. He continues walking away from his house at 3 feet per second in the same direction. Write an equation that expresses Jeremy’s distance, since he turned on his GPS watch.

Javier is planning on driving from Chicago to Minneapolis, a distance of 405 miles. He knows that the average speed for this trip can range from 45 mph to 60 mph. He makes a graph that represents the trip for the range of speeds.

Genevieve drinks between 8 and 10 cups of water a day. She buys a 5-gallon (80-cup) jug of water. The graph shows the number of cups of water left in the jug as she drinks. Write an inequality for the number of cups of water remaining after five days.

A biker is returning home on a 70-mile trip. She is able to average between 14 mph and 20 mph. The graph shows possible times for completing the trip.

If the biker starts riding at 6:00 a.m., between what times can her family expect her to arrive at home?

Laney is driving away from Houston. Which equation expresses Laney’s distance from Houston that she has driven?

A 100-pound bag of sand is leaking at a rate of 0.25 pounds per second. The function W(t)=100−0.25t expresses the weight of the bag, W(t), as a function of the number of seconds, t. What does W(200) represent in terms of the problem?

Kamala and Jocelyn both start climbing a cliff from the bottom at the same time. Kamala climbs up the cliff wall at a constant rate of 15 feet per minute. Jocelyn climbs up the cliff wall at a constant rate of 10 feet per minute.

Graph the equations that represent the heights h

h that both have climbed, as a function of the time t

t in minutes

What is the solution to the systems?

2x−3y=7

x+4y=9