Constant of Proportionality Review

Front

When we compare quantities, we compare them as _____ over ______.

Back

y over x

Front

What is the constant of proportionality (in miles per hour) based on the table?

Back

45 mph

Front

Albert wants to buy some pens. He compares 4 different packs of pens. Which two packs of pens have the same cost per pen?

Back

Packs 1 and 4

Front

The table represents the cost of a cab ride in New York City over a period of 6 miles. What is the cost for one mile?

Back

$2.50

Front

The constant of proportionality is the same as finding what?

Back

all of the above

Front

Define constant of proportionality.

Back

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

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities when they are combined together, expressed as a quantity per one unit.

Front

How do you find the unit price?

Back

To find the unit price, divide the total price by the number of units.

Front

If a car travels 90 miles in 2 hours, what is the constant of proportionality in miles per hour?

Back

45 mph

Front

What does it mean if two ratios are equivalent?

Back

It means they represent the same relationship between quantities.