Proportionality quiz

Y is directly proportional to X, and y = 12 and X = 18.

Which of the following statements are true?

• y = 2/3 x

• When x = 12 than y = 8

• the constant rate of proportionality is 3/2

• the constant rate of proportionality is 2/3

Which of the following is true?

• Non proportional

• proportional

• The rate of proportionality is 3/4

• The rate of proportionality is 4/3

What is true about the graph?

• It is proportional

• it is non proportional

• The constant rate of change is - 3/4

• the constant rate of change is 4/3

What is true about table D ?

• The constant rate is 2

• The constant rate is -2

• The constant rate is - 1/2

• Non proportional

What is the unit rate from the table?

• 2 bales of hay per mule

• 1/2 bales of hay per mule

It takes 5 and 1/2 years for an oak tree to reach 2/5 of its height. How many years will it take an oak tree to reach its full height?

• 27 and 1/2 years

• 13 and 1/2 years

• 4/55 years

• 2 and 1/5 years

Which tables are proportional?

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