Unit 2 and 3 Assessment Review

Front

What is a proportional relationship?

Back

A proportional relationship is a relationship between two quantities where the ratio of one quantity to the other is constant. It can be expressed as y = kx, where k is the constant of proportionality.

Front

What is the equation form of a proportional relationship?

Back

The equation form of a proportional relationship is y = kx, where k is the constant of proportionality.

Front

What does it mean if a graph does not pass through the origin?

Back

If a graph does not pass through the origin, it indicates that the relationship is not proportional.

Front

How do you find the unit rate from a distance and time?

Back

To find the unit rate, divide the total distance by the total time. For example, if you drove 216 miles in 8 hours, the unit rate is 216 miles ÷ 8 hours = 27 miles per hour.

Front

What is the unit rate of 216 miles in 8 hours?

Back

The unit rate is 27 miles per hour.

Front

If Adriel drives at a rate of 27 miles per hour, how far will he travel in 3 hours?

Back

He will travel 81 miles in 3 hours (27 miles/hour × 3 hours = 81 miles).

Front

What is the significance of the equation y = 4x?

Back

The equation y = 4x represents a proportional relationship, where for every unit increase in x, y increases by 4.

Front

What does it mean for an equation to represent a proportional relationship?

Back

An equation represents a proportional relationship if it can be expressed in the form y = kx, where k is a non-zero constant.

Front

What equation represents total earnings for selling x cups of lemonade at $9.50 each?

Back

The equation is y = 9.50x.

Front

What is the constant of proportionality in the equation y = 9.50x?

Back

The constant of proportionality is 9.50, which represents the price per cup of lemonade.