Constant of Proportionality from a Table

Is this table proportional?

• Yes

• No

There is a proportional relationship between the amount of pecans (in cups) Denelle's grandfather uses, x, and the number of pralines he makes, y. What is the constant of proportionality?

• 1/5 pralines per cup of pecans

• 5 pralines per cup of pecans

This holiday weekend, Gordon is going to Chicago to shop and see a baseball game. To avoid traffic, Gordon decides to take the train. What is the constant of proportionality?

• 1 mile per minute

• 13 miles per minute

Over the summer, Greenwood Science Academy renovates its building. The academy's principal hires Martha to lay new tile in the main hallway. What is the constant of proportionality?

• 3 feet per tile

• 3 tiles per foot

• 1/3 feet per tile

• 1/3 tiles per foot

A mysterious flying superhero known as Blue Sky protects the good citizens of Belleville. Unknown to these citizens, Blue Sky is actually mild-mannered Richard, a scientist in a flying suit. Before Richard can fly in the suit, he needs to charge its battery. What is the C.O.P.?

• 2 hours charged per flight hour

• 2 flight hours per hours charged

• 1/2 hours charged per flight hour

• 1/2 flight hours per hours charged

Suzie is starting a summer camp for children with hearing impairments. She needs to hire enough counselors to chaperone the children. What is the C.O.P.?

• 1/4 children per counselor

• 1/4 counselors per children

• 4 children per counselor

• 4 counselors per children

Every month, Midtown Grocery Store donates 8-ounce cans of vegetables to a food bank. The food bank's volunteers fill bags with these cans and deliver the bags to families in need. What is the C.O.P.?

• 1/6 cans per bag

• 1/6 bag per can

• 6 cans per bag

• 6 bags per can

In a flash of sheer brilliance, Brenna invents a time machine! The machine uses a small nuclear reactor to generate the electricity it needs to travel back in time. What is the C.O.P.?

• 11 megawatts per year

• 1/11 years per megawatts

• 1/11 megawatts per year

• 11 years per megawatts

During hockey season, Spencer stays in excellent shape. To keep up his conditioning in the off season, he swims every day. Spencer uses an app on his smartwatch to keep track of how many calories he burns while swimming. What is the C.O.P.?

• 1/12 minutes per calorie

• 12 minutes per calorie

• 12 calories per minute

• 1/12 calories per minute

The constant of proportionality can be found by finding the __________  _____________.

• unit rate

• ratio rate

• proportion answer

• rational number