Lesson 12: Using Graphs to Compare Relationships | Unit 2: Introducing Proportional Relationships

The following graphs show some information about boxes of crayons at a store. One of the graphs shows cost in dollars vs. number of crayons in the box, and one of the graphs shows weight in ounces vs. number of crayons in the box. Which graph is which? Give them the correct titles.

The following graphs show some information about boxes of crayons at a store. One of the graphs shows cost in dollars vs. number of crayons in the box, and one of the graphs shows weight in ounces vs. number of crayons in the box. For the proportional relationship, find the constant of proportionality. What does that number mean?

Lin and Andre biked home from school at a steady pace. Lin biked 1.5 kilometers and it took her 5 minutes. Andre biked 2 kilometers and it took him 8 minutes. For each line, highlight the point with coordinates $$(1,k)$$ and find $$k$$ .

Lin and Andre biked home from school at a steady pace. Lin biked 1.5 kilometers and it took her 5 minutes. Andre biked 2 kilometers and it took him 8 minutes. Who was biking faster?

A semi truck can travel 1,300 miles on 200 gallons of fuel. A train can travel 1,000 miles on 2 gallons of fuel. This graph shows the fuel usage in miles per gallon for the two vehicles. Which line represents the semi truck and which represents the train?