Proportional Relationships Review for Flashcard #1

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 find the unit rate from a graph?

Back

To find the unit rate, determine the change in the y-values divided by the change in the x-values (rise over run).

Front

What does a constant rate of change indicate in a graph?

Back

A constant rate of change indicates that the relationship between the two variables is linear.

Front

What is the unit rate if the change in y is 3 and the change in x is 2?

Back

Front

How can you identify a non-proportional relationship from a graph?

Back

A non-proportional relationship does not have a constant ratio between the x and y values, often shown by a line that does not pass through the origin.

Front

What does it mean if a graph is not proportional?

Back

If a graph is not proportional, it means that the relationship between the variables does not maintain a constant ratio.

Front

What is the formula for calculating the slope (rate of change)?

Back

Front

Back

This indicates that for every 3 units increase in x, y increases by 4 units.

Front

What is the significance of the y-intercept in a linear graph?

Back

The y-intercept is the point where the graph crosses the y-axis, indicating the value of y when x is zero.

Front

How do you determine 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.