Constant of Proportionality Review

Front

What is the constant of proportionality?

Back

The constant of proportionality is the ratio between two proportional quantities, often represented as k in the equation y = kx.

Tags

CCSS.7.RP.A.2B

Front

How do you find the unit rate?

Back

To find the unit rate, divide the total amount by the number of units. For example, if 15 pizzas cost $97.50, the unit rate is $97.50 ÷ 15 = $6.50 per pizza.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What does 'unit' mean in mathematics?

Back

In mathematics, 'unit' refers to one single item or quantity.

Tags

CCSS.4.OA.B.4

Front

Write the equation for a proportional relationship where y increases by 3 for every increase of 1 in x.

Back

y = 3x.

Tags

CCSS.7.RP.A.2C

Front

If a car travels 195 miles in 3 hours, what is its speed in miles per hour?

Back

The speed is 195 miles ÷ 3 hours = 65 miles per hour.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the formula to calculate the constant of proportionality from a table of values?

Back

The constant of proportionality can be calculated by dividing the y-value by the corresponding x-value.

Tags

CCSS.7.RP.A.2B

Front

If y = 4x, what is the constant of proportionality?

Back

The constant of proportionality is 4.

Tags

CCSS.7.RP.A.2B

Front

What is the relationship between unit price and constant of proportionality?

Back

The unit price is a specific case of the constant of proportionality, representing the cost per single unit of an item.

Tags

CCSS.7.RP.A.2B

Front

If you buy 10 items for $50, what is the unit price?

Back

The unit price is $50 ÷ 10 = $5 per item.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How can you determine if two ratios are proportional?

Back

Two ratios are proportional if their cross products are equal.

Tags

CCSS.6.RP.A.3A