Proportional Reasoning Topic Review

Front

What is the constant of proportionality in the equation y=4.1x?

Back

4.1

Front

If a jumbo pack of 50 ride tickets costs $45 and a medium pack of 30 ride tickets costs $28.50, how much do you save by purchasing the 50 pack?

Back

$0.05

Front

What are the coordinates for point P?

Back

(1,5)

Front

Write an equation to represent the proportional relationship where y is proportional to x with a constant of 2.75.

Back

y=2.75x

Front

If a bamboo grows 30 centimeters in \frac{1}{3} of a day, how much does it grow in 1 full day?

Back

90 centimeters

Front

Define proportional reasoning.

Back

Proportional reasoning involves understanding the relationship between quantities that maintain a constant ratio.

Front

What is a proportional relationship?

Back

A proportional relationship is one where two quantities increase or decrease at the same rate.

Front

How do you find the constant of proportionality from a table of values?

Back

Divide the output value by the input value for any pair of corresponding values.

Front

What is the formula for finding the unit rate?

Back

Unit rate = Total amount / Number of units.

Front

If y varies directly with x, what does this mean?

Back

It means that y = kx for some constant k.