8.2 Proportional Relationships, Lines, and Linear Equations
Beginning Lesson
Domino Effect
How much does Domino's charge for pizza? Students use linear functions — slope, y-intercept, and equations — to explore how much the famous pizzas really cost.
Topic:
Expressions and Equations (EE), Functions (F)
Middle Lesson
Crop and Trade
Which crops should farmers grow? Students use linear relationships and proportional reasoning to explore comparative advantage and the risks and benefits of trade.
Topic:
Expressions and Equations (EE)
End Lesson
Not So Fast
How should speeding tickets be calculated? Students use linear equations to explore how police officers determine speeding fines...and whether tickets are calculated fairly.
Topic:
Functions (F)