Math 8 IM Unit 3 Lessons (1-3) Flashcard

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

How do you determine if a table of values is proportional?

Back

A table is proportional if the ratios of the corresponding values are the same.

Front

What is the formula for slope?

Back

Front

Back

It indicates that for every 3 units you move horizontally to the right, you move 1 unit up.

Front

Back

It indicates that for every 5 units you move horizontally to the right, you move 4 units down.

Front

What is the equation of a line in slope-intercept form?

Back

Front

Back

The y-intercept is 2, which is the value of y when x = 0.

Front

How can you tell if a graph represents a proportional relationship?

Back

A graph represents a proportional relationship if it is a straight line that passes through the origin (0,0).

Front

What does it mean if a relationship is not proportional?

Back

It means that the ratio between the two quantities is not constant.

Front

Back