Real Life Problems About Proportional and Non-Proportional Relationship

Write the equation of the proportional relationship using the format y = kx.

Is the graph proportional?

• Yes

• No

• y = 1/5x

• y = 5x

• y = 1/2x

What is the constant of proportionality? Use the format k = 2.

How large a roast can Wesley cook in 4 hours using his recipe? Write your answer as a whole number or decimal.

Mathematical Equivalence

ON

Answer explanation

Tags

7.4.A

The equation for the table is y=9x.  Use the equation to find how much money they would make in 14 hours?

• $155

• $150

• $1.55

• $126

How large a roast can Wesley cook in 4 hours using his recipe?

Write your answer as a whole number or decimal.

Mathematical Equivalence

ON

Answer explanation

Tags

7.4.A

To find the height of a very tall pine tree, you measure your shadow and the tree's shadow.  How tall is the tree?

• 144 feet

• 72 feet

• 36 feet

A restaurant orders corn tortillas and flour tortillas. The ratio of the number of corn tortillas to the number of flour tortillas is 2 : 3. What is the ratio of the number of flour tortillas to the total number of tortillas?

• 3 : 8

• 3 : 5

• 2 : 8

• 2 : 5

What is the constant of proportionality? Use the format k = 4.