CW: Unit 5 Review (Proportional Relationships)

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.

Front

Which of the following is an example of a proportional function?

Back

Beverly earns $210 a week for 4 weeks.

Front

What does the slope of a line represent?

Back

The slope represents the rate of change of the line, indicating how much the y-value changes for a change in the x-value.

Front

What is the formula for calculating slope?

Back

Slope = rise/run.

Front

If a line has a slope of 4/3, what does this mean?

Back

For every 4 units the line rises, it runs 3 units horizontally.

Front

What is the difference between proportional and non-proportional relationships?

Back

Proportional relationships have a constant ratio, while non-proportional relationships do not.

Front

How can you identify a proportional relationship from a graph?

Back

A proportional relationship will show a straight line that passes through the origin (0,0).

Front

What is the slope of the line represented by the points (2, 4) and (6, 10)?

Back

The slope is 3/2.

Front

Back

b = 38.

Front

What is the slope of a horizontal line?

Back

The slope of a horizontal line is 0.