Lesson: Applications of Linear Functions Mathematics • 9th Grade

In this lesson, we will learn how to interpret linear functions in real-world situations.

Lesson Plan

Students will be able to

write the linear equation that describes a real-life situation, hence using the equation to solve problems,
interpret aspects of a linear model using its graph.

Lesson Video

Lesson Playlist

02:45
02:39
+2

03:17

Lesson Worksheet

Q1:

Natalie and Amelia went jogging. Amelia jogged 30 minutes longer than Natalie. If Amelia jogged for 40 minutes, write an equation to determine how long Natalie jogged, and then solve it.

Q2:

In the equations below, represents the width of a rectangle and represents the length.

Which equation represents the statement “The width of a rectangle is 12 less than twice its length”?

Q3:

Noah and Michael together have $572. If Noah has $285, write an addition equation to determine how much money Michael has, and then solve it.