Proportional Ratios Using Graphs

A __________ is two equal ratios

• ratio

• proportion

• constant

• unit rate

Which equation represents the table?

What makes a graph proportional?

• Straight line

• The line goes through the origin

• Curvy line

• Straight line and the line goes through the origin

Which point is located on the graph of every proportional relationship?

• (0,0)

• (0,1)

• (1,0)

• (1,1)

Ms. Rubenstein drives at a constant speed of 60 mph. She graphs this proportional relationship on a coordinate plane. Which of the following points lies on Ms. Rubenstein's graph?

• (0,60)

• (60,0)

• (1,60)

• (60,1)

Using the graph, find the constant of proportionality.

• 5

• 10

• 1

• 0.20

Which graph is proportional?

• A

• B

• C and D

• All of the graphs are proportional

Identify the constant of proportionality.

• k = 25

• k = 50

• k = 100

• k = 1/50

• none (not proportional)

What is the constant of proportionality for the graph?

Is the given table a proportional relationship? If so, what is the constant?

• Yes; 1/3

• Yes; 3

• Yes; 5

• No