Ratio Unit Rate Constant of Proportionality Proportional Relationships

Which equation matches the graph?

• y = 8x

• y = 1x

• y = 3x

• y = 16x

A machine packs boxes at a constant rate of 2/3 a box every 1/2 a minute.  What is the number of boxes it packs per minute?

• 1/3

• 3/4

• 7/6

• 4/3

A store sees 120 customers in 8 hours. What is the constant of proportionality?

• 16 customers per hour

• 15 customers per hour

• 12 customers per hour

• 20 customers per hour

On Saturday, Dr. Morrison drove 340 miles in 5 hours. On Sunday, he drove 198 in 3 hours. Based on this information, which statement is true?

• His rate on Saturday was 2 miles per hour slower than his rate on Sunday.

• His rate on Sunday was 2 miles per hour slower than his rate on Saturday.

• His rate on Saturday was the same as his rate on Sunday.

• His rate on Sunday was 2 miles per hour faster than his rate on Saturday.

Is the graph proportional or non proportional?

• proportional

• non proportional

Why does this graph show a non-proportional relationship?

• Because it is proportional

• It goes through the origin

• It does not go through the origin

• It is a straight line

What word describes the constant value of the ratio of proportional quantities x and y? Hint: It is another word for the unit rate.

• Constant of Proportionality

• Equivalent Fraction

• Proportion

• Scale Factor

Does this table represent a proportional relationship?

• Yes

• No

What is the unit rate, or constant of proportionality?

• k = 3

• k = 6

• k = 9

• k = 12

What is the Constant of Proportionality?

• k = 1

• k = 2

• k = 3

• k = 4