Proportional Relationship and Multiple Representation

Two students created the graphs shown to the left.

True or False: Both graphs represent a linear relationships.

• True

• False

Two students created the graphs shown to the left.

True or False: Both graphs have a positive slope.

• True

• False

Two students created the graphs shown to the left.

Which student has a positive slope?

• Raul

• Becky

Two students created the graphs shown to the left.

True or False: Both graphs represent proportional relationships between x and y.

• True

• False

• True

• False

The table represents the amount of coffee in a coffee pot based on the number of minutes the coffee has been brewing.

What is the constant ratio in the situation?

Mathematical Equivalence

ON

The table represents the amount of coffee in a coffee pot based on the number of minutes the coffee has been brewing.

True or False: The table represents a proportional relationship between x and y.

• True

• False

• True

• False

The table represents the amount of coffee in a coffee pot based on the number of minutes the coffee has been brewing.

What is the equation of this linear relationships?

Mathematical Equivalence

ON

The graph represents the balance in Jimena's checking account based on the number of days since her last paycheck.

True or False: The relationship shown on the graph is non-proportional.

• True

• False