Constant of Proportionality Review

Front

What is the constant of proportionality?

Back

The constant of proportionality is the constant value (k) that relates two proportional quantities, expressed as y = kx.

Tags

CCSS.7.RP.A.2B

Front

How do you find the constant of proportionality from a table?

Back

To find the constant of proportionality from a table, divide the value of y by the corresponding value of x for any pair of values.

Tags

CCSS.7.RP.A.2B

Front

What is the equation of a proportional relationship?

Back

The equation of a proportional relationship is in the form y = kx, where k is the constant of proportionality.

Tags

CCSS.7.RP.A.2C

Front

If y = 18.50x, what is the constant of proportionality?

Back

The constant of proportionality is 18.50.

Tags

CCSS.7.RP.A.2B

Front

What does it mean if a relationship is not proportional?

Back

If a relationship is not proportional, it means that the ratio of y to x is not constant.

Tags

CCSS.7.RP.A.2A

Front

How do you calculate the unit cost?

Back

To calculate the unit cost, divide the total cost by the number of units.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If 15 pizzas cost $97.50, what is the unit cost per pizza?

Back

The unit cost per pizza is $6.50.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the constant of proportionality for $9 per hour?

Back

The constant of proportionality is $9, meaning for every hour, the cost is $9.

Tags

CCSS.7.RP.A.2B

Front

What is the formula to find the total cost in a proportional relationship?

Back

The formula to find the total cost is Total Cost = k * Number of Units.

Tags

CCSS.7.RP.A.2C

Front

If k = 25, what does this imply about the relationship?

Back

If k = 25, it implies that for every unit, the cost is $25.

Tags

CCSS.6.RP.A.3B