Proportional Relationships with Graphs, Tables, and Equations

Which of the following equations does NOT match the table?

• y = 25/2x

• y = 2/25x

• y = 12.5x

• y = 12.5x + 0

What can you use to represent linear relationships?

• verbal descriptions

• equations

• graphs

• tables

• all of the above

Is this table proportional or non-proportional?

• non-proportional

• proportional

At what rate did the rain fall?

• 2 cm per hour

• ¹/₄ cm per hour

• ¹/₂ cm per hour

• 4 cm per hour

Does the table above represent a proportional or non-proportional relationship?

• Proportional

• Non-Proportional

Looking at the graph, is it proportional or non-proportional?

• Proportional

• Non-Proportional

At what point is the line crossing the Y-axis?

• 1.5

• -2

• 3

• -3

Does this graph show a proportional relationship?

• Yes, because it is linear

• Yes, because it is linear and goes through the origin.

• No, because it is not linear

• No, because it does not go through the origin.

Find the slope.

• 3/2

• -3/2

• (-0,-3)

• none of the above

In the equation y=mx+b, what does the m represent?

• slope

• y-intercept

• linear

• point-slope