Lesson Plan: Graphing Linear Equations

This is the second lesson in a five-part series on linear equations. It introduces students to graphing linear equations using slope-intercept form: \( y = mx + b \). Students will learn to identify slope and y-intercept, plot points, and interpret graphs in real-world contexts. The lesson aligns with Common Core Standards 8.EE.B.5 and 8.EE.B.6.

Key Concepts

• Slope: The ratio of rise over run, determining a line’s steepness.
• Y-Intercept: The point where the line crosses the y-axis (\( x = 0 \)).
• Slope-Intercept Form: \( y = mx + b \), where \( m \) is the slope and \( b \) is the y-intercept.

Warm-Up Activities

• Desmos Graphing Activity: Students input coordinates into a table and observe patterns in graphing equations.
• Slope Review: Identifying positive, negative, zero, and undefined slopes.

Lesson Application

Students will practice graphing linear equations step by step and analyze their real-world applications.

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