Ratio Unit Review

What is a Ratio?

• Is a comparison of two quantities 

• A rate with a denominator of one

• It is when the only factor the numerator and denominator share is a one 

• Two decimals that can be multiplied

The Williams family bought four concert tickets for $252.  What was the price per ticket?

• $60.00

• $63.00

• $6.30

• $62.00

A car travels 320 miles in 8 hours. What is the unit rate?

• 45 miles per hour

• 80 miles per hour

• 40 miles per hour

• 60 miles per hour

What makes a graph proportional?

• Straight Line

• The line goes through (0,0)

• Curvy line

• Straight line and passes through (0,0)

Is this table proportional?

• yes

• no

• I'm not sure, I need extra help!

What is the constant of proportionality?

• 15

• 5

• 75

• 25

In the equation y = 14x, what is the constant of proportionality?

• y

• x

• 14

• y=14

What is the equation y=kx for the table?

• y=1/3x

• y=3x

• y=5x

• y=1/5x

Which line shows a proportional relationship between x and y?

• Line L

• Line M

What is the unit rate in this proportional relationship?

• 60 miles/1 hour

• 120 miles/ 2 hours

• 1 mile/ 1 hour