Students use linear functions to model and solve problems in situations with slope and a constant rate of change. They learn to represent situations with variables in expressions, equations, and inequalities and use tables and graphs as tools to interpret them.

Before the Activity

See the attached PDF file for detailed instructions for this activity

Print pages 38 - 42 from the attached PDF file for your class

During the Activity

Distribute the pages to the class.

Follow the activity procedures:

Given the coordinates of two points, use the slope formula to find the slope of the line passing through the two points

Change the decimal result to a fraction

For each given ordered pair of numbers, plot the points, draw a line through the points, and find the slope of the line

Solve a real world problem and understand the meaning of the slope in the given situation

Make a plot of the data pairs from the given problem, draw a line through the pairs, and use the linear model to predict results

Write an equation to model given data, use the equation to generate several data pairs, plot the points, and find answers

After the Activity

Students complete the Student Activity pages.

Review student results

As a class, discuss questions that appeared to be more challenging