Graphing Proportional Relationships Review

What qualities must a graph have in order for it to be proportional? (Select ALL that apply)

• Must cross through the Origin, point (0,0)

• Must always be positive

• Must be a line

• Must be a straight line; has to be linear

State whether the graph is proportional or non-proportional.

• Proportional

• Non-proportional

State whether the graph is proportional or non-proportional.

• Proportional

• Non-proportional

Which line represents a proportional relationship? (Select ALL that apply)

• Blue Line A

• Red Line B

• Green Line C

A proportional relationship goes through the (a)   . On a graph, this goes through the point ​ (b)   .

• origin

• y intercept

• (0,0)

• (0, y)

• (x,0)

The cost of five pounds of grapefruit is $6.00. The cost per pound of grapefruit remains the same regardless of the quantity purchased. Graph the relationship between y, the total cost of grapefruit purchased, and x, the weight in pounds of the grapefruit purchased.Plot two points on the coordinate grid.

A submarine descended 30 feet in 2 minutes. The submarine descended the same depth each minute. Create a graph that represents this slope.

A snail moving at a constant rate traveled a distance of 2 feet in 1/2 hour. Create a graph to represent y, the number of feet the snail traveled in x hours. Select two points on the coordinate grid that represent the situation.

Which of the following is a proportional relationship?