Representing Proportional Relationships with Graphs

Which shows a proportional relationship?

• y = 1/2x - 1/2

• y = 1/2x

• y = 2x - 2

• y = 2x + 2

Is this table proportional or non-proportional?

• Proportional

• Non-Proportional

• both

• neither

Determine the unit rate of the graph.

• $40 per yard of fabric

• $20 per yard of fabric

• $3 per yard of fabric

• $4 per yard of fabric

• $12 per 3 yards of fabric

Which graph shows a proportional relationship?

• 
• 
• 
• 

Which equation matches the graph?

• y = 8x

• y = 1x

• y = 3x

• y = 16x

Match the correct equation to the graph

• y = 30x

• y = 5x

• y = 6x

• y = x

The graph shows the cost of buying paint in 1-gallon buckets. Based on the graph, which dollar amount represents the cost to buy five 1-gallon buckets of paint?

• $120

• $125

• $130

• $135

Write an equation for the graph. Use m, for months, and s, for savings. (Remind to use the constant - 1,y)

Find the unit rate

• $3.50 per hour

• $7 per hour

• 5 hours per dollar

• $14 per hour

Which graph is proportional?

• A

• B

• None of the graphs

• All of the graphs are proportional