Proportional Relationships | 8th Grade Math – Functions
Perfect for students in traditional classrooms, homeschool families, and anyone who needs a clear math explanation!
Deepen your understanding of proportional relationships and how they appear in tables, graphs, and equations in this 8th grade math lesson.
✏️ Topics covered:
• Defining proportional relationships: a constant ratio y/x = k for all (x, y) pairs
• Finding the constant of proportionality k from a table, graph, or equation
• Writing the equation y = kx from a table or graph
• Verifying proportionality from a table: check that all y/x ratios are equal
• Identifying proportional relationships from a graph: straight line through the origin
• Interpreting k as the unit rate, the slope, and the constant of proportionality simultaneously
• Using the equation to find missing values and make predictions
• Connecting proportional relationships to linear functions with zero y-intercept
• Distinguishing proportional relationships from non-proportional linear relationships
📚 Mrs.D Math helps students master math one lesson at a time.
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TEKS 8.5A
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