Solving and Graphing Proportional Relationships

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

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

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 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.

Graph the equation

y=3/5x

Graph the equation

y=3x