Students continue to explore the three relationships from the previous lessons: Comparing Dimensions, Driving to the Amusement Park, and Temperatures at the Amusement Park. They graph the three situations and realize that the two proportional relationships form a straight line, but the time and temperature relationship does not.
A table of values that represent equivalent ratios can be graphed in the coordinate plane. The graph represents a proportional relationship in the form of a straight line that passes through the origin (0, 0). The unit rate is the slope of the line.
Goals and Learning Objectives
- Represent relationships shown in a table of values as a graph.
- Recognize that a proportional relationship is shown on a graph as a straight line that passes through the origin (0, 0).