This being human is a guest house. Every morning is a new arrival. A joy, a depression, a meanness,
Idea Transcript
NAME ___________________________________________________ DATE _____________________ PERIOD __________
Lesson 6 Skills Practice Graphing Proportional Relationships Determine whether each relationship is proportional by graphing on a coordinate plane. Explain your reasoning. 1. Time (hr) 0 1 2 3 4 Distance (mi)
0
45
90
135
180
See students' work for graph. Proportional; the graph passes through the origin and is a straight line. 2.
Number of Tickets Cost ($)
4
8
12
16
20
100
190
264
316
340
See students' work for graph. Nonproportional; the graph is not a straight line. 3.
Number of Chicken Dinners
2
4
6
8
10
Cost ($)
12
24
36
48
60
Find and interpret the constant of proportionality. 4. The number of lifeguards on duty at the local swim club is proportional to the number of swimmers. The graph shows the relationship (swimmers, lifeguards).