Week 18~Math Bridges (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

Define constant of proportionality.

Back

The constant of proportionality is the constant value (k) that relates two proportional quantities, expressed as y = kx.

Front

What does the equation y = kx represent?

Back

This equation represents a direct variation where y varies directly with x, and k is the constant of proportionality.

Front

If y = 2.5x, what is the constant of proportionality?

Back

The constant of proportionality is 2.5.

Front

What is the meaning of the y-intercept in a linear equation?

Back

The y-intercept is the value of y when x is 0, indicating where the line crosses the y-axis.

Front

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

Back

A relationship is proportional if the ratio of y to x is constant for all pairs of values.

Front

What is the formula to find the rate of change in a proportional relationship?

Back

The rate of change can be found using the formula: Rate of Change = (Change in y) / (Change in x).

Front

Back

Front

What does it mean if a relationship is non-proportional?

Back

A non-proportional relationship does not have a constant ratio between the two quantities, meaning the graph does not pass through the origin.

Front

How can you represent a proportional relationship with an equation?

Back

A proportional relationship can be represented by an equation of the form y = kx, where k is the constant of proportionality.