Linear Equations Word Problems

The plane is descending!

• Kenzie is flying a plane at 36,000 feet. The flight control tower let him know that another plane was approaching and he should descend at a rate of 2000 feet per minute to 26,000 feet.

• What is the domain and Range of this situation?

• For domain, what is x? per minute means x is minutes

• ​time started at zero minutes when the call was first made.

• ​How many minutes did it take to descend from 36,000 feet to 26,000 feet?

• ​So, the domain of this situation, all x values are from 0 to 5 minutes.

• ​What do you think the range would be?

Range from a graph.

There are infinitely many points on this graph.

a) What is the highest y-value?

b) What is the lowest y-value?

c) What is the range?

Domain and Range