Review Functions Unit Rates and Equations

The weight of Brandi's luggage is represented by the equation y = 40x, where y represents the weight in lbs and x represents the number of bags. The weight of Javier's luggage is represented in the graph. Compare their rates.

• Brandi's luggage weighs more because it weighs 40 lbs per bag.

• Javier's luggage weighs more because it weighs 40lbs per bag.

• Brandi's luggage weighs more because it weighs 30 lbs per bag.

• Javier's luggage weighs more because it weighs 30 lbs per bag.

Which of the function(s) above are linear?

• Function I, only

• Function II, only

• Function I and Function II, only

• Function I, Function II, and Function III

Which equations represent linear functions?

• Equations 1 and 2, only

• Equations 1 and 4, only

• Equations 2 and 3, only

• Equations 1, 3, and 4, only

Is the relation a function? Why.

• Yes, because the x-value 11 has two y-values pair with it.

• Yes, because each x-value has only one y-value paired with it.

• No, because the x-value 11 has two y-values pair with it.

• No, because each x-value has only one y-value paired with it.

The table shows the number of city blocks and houses on four different mail routes. Based on the relationship shown in the table, which statement is true?

• There are 8 times as many houses as city blocks on each mail route.

• There are 12 times as many houses as city blocks on each mail route.

• There are 24 times as many houses as city blocks on each mail route.

• There are 2 times as many houses as city blocks on each mail route.

What is a unit rate?

• Two unlike things compared to each otehr 

• How often something occurs 

• A rate expressed as something per two

• A rate expressed as something per one

What is the cost per hour for a canoe rental?

• $12 per hour

• $14 per hour

• $18 per hour

• $26 per hour

A unit rate is a rate in which the unit in the denominator is:

• 100

• 1

• 10

• 1000

A train travels 650 yards in 15 seconds. If the train travels at a constant rate, how many yards will the train travel per minute?

• 2,600 yards

• 9,750 yards

• 2,500 yards

When a rate is expressed as a unit of one...

• unit rate

• scale factor

• proportion

• decimal