4.3 - Graphing Proportional Relationships Review

Is this graph proportional?

• Yes
• No

What makes a graph proportional?

• Linear
• The line is only in quadrant 1
• Curvy line
• Linear and the line goes through the origin

Which equation shows a NON-proportional relationship of x and y?

• y = 5x
• y = -5.6x
• y = x + 3
• y = 1/2x

Which graph is proportional?

• A
• B
• C and D
• All of the graphs are proportional

Does the table represent a proportional relationship?

• Yes.
• No.

The graph represents the height of a burning candle.  What is the meaning of the slope?

• the time it takes to burn the entire candle
• the change in the height of the candle each hour it is burning
• the different heights of the candle
• the original height of the candle

Is this table proportional?

• Yes
• No

Using the graph above, determine the constant of proportionality.

• 0

• 1

• 3

• 6

The graph above shows the price of games in dollars.  Is the graph proportional and how do you know?

• The graph is proportional  because it is linear.
• The graph is proportional because it is linear and passes through the origin.
• The graph is not proportional because it does not pass through the origin.
• The graph is not proportional because it is not linear and it does not pass through the origin.

What is the equation of the line shown on the graph?

• y = 96x + 1

• y = 45x

• y = 47x

• y = 94x + 5