Proportional Relationships

Front

What is the origin in the coordinate plane?

Back

The origin is the point (0, 0) in the coordinate plane.

Front

What does it mean for a graph to be proportional?

Back

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

Front

In the equation y = kx, what does k represent?

Back

k represents the constant of proportionality.

Front

How do you find the unit rate?

Back

To find the unit rate, divide the total amount by the number of units.

Front

What is the unit rate of 624 calories in 3 servings?

Back

The unit rate is 208 calories per serving.

Front

What is a constant of proportionality?

Back

It is the constant value that relates two proportional quantities.

Front

What is the slope of a proportional relationship?

Back

The slope is equal to the constant of proportionality.

Front

How can you tell if a table of values represents a proportional relationship?

Back

If the ratio of y to x is constant for all pairs of values.

Front

What is the equation of a proportional relationship?

Back

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

Front

What does a straight line through the origin indicate on a graph?

Back

It indicates a proportional relationship between the variables.