IXL | Identify graphs: word problems

At the county fair, Grace took a ride in a hot-air balloon. It was a tethered balloon, which means the balloon stayed tied to the ground so that it didn't drift too high or too far. Grace floated up into the sky until the tether was fully unrolled. She stayed up there a while enjoying the scenery, and then she came back down.

Which graph could show Grace's height above ground over time?

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question

Bert realizes that his fish tank has a slow leak. To fix it, he first removes some water, repairs the hole with sealant, and gives the new sealant time to dry. Then, he gradually refills the tank.

Which graph could show the water level in Bert's fish tank from the time it started leaking until the time it was refilled?

solution

You want to find the graph that could show the water level in Bert's fish tank from the time it started leaking until the time it was refilled. So, consider each part of the story and what the graph should show.

Bert realizes that his fish tank has a slow leak.

Since the tank is leaking, the water level in the tank is slowly but steadily decreasing. The graph should show a decreasing

segment.

To fix it, he first removes some water …

When Bert removes water, the water level drops quickly. The graph should show a steep decreasing

segment.

… repairs the hole with sealant, and gives the new sealant time to dry.

While Bert repairs the hole and waits for the sealant to dry, the water level does not change. The graph should show a horizontal

segment.

Then, he gradually refills the tank.

As Bert refills the tank, the water level rises. The graph should show an increasing

segment.

This graph shows all of the parts of the story in order:

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