7A Unit 4 Proportional Relationships Test Review

Front

What is the constant of proportionality in a proportional relationship?

Back

The constant of proportionality is the unit rate that describes how one quantity changes in relation to another in a proportional relationship.

Front

Which point on a graph typically represents the constant of proportionality?

Back

The point (1, k) where k is the constant of proportionality.

Front

How can you determine if a relationship is proportional?

Back

A relationship is proportional if all ratios of the two quantities are equivalent.

Front

What is the equation form of a proportional relationship?

Back

The equation is typically in the form y = kx, where k is the constant of proportionality.

Front

If the price of coffee is $0.35 per ounce, how much will 20 ounces cost?

Back

20 ounces will cost $7.

Front

What does the origin (0,0) represent in a proportional relationship graph?

Back

The origin represents the starting point where both quantities are zero.

Front

What is a unit rate?

Back

A unit rate is a ratio that compares a quantity to one unit of another quantity.

Front

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

Back

Divide the dependent variable by the independent variable for any pair of values; if the result is constant, that value is the constant of proportionality.

Front

What does it mean if a graph passes through the origin?

Back

It indicates that the relationship is proportional, as both quantities are zero at that point.

Front

What is the significance of the slope in a proportional relationship graph?

Back

The slope represents the constant of proportionality.