Chapter 5 Test

Front

What type of slope is represented by a vertical line?

Back

Undefined slope.

Front

What does it mean for a graph to be proportional?

Back

A proportional graph passes through the origin and has a constant ratio between the variables.

Front

Back

(0, 1)

Front

Back

-3.

Front

What does it mean if a system of equations has no solution?

Back

The lines representing the equations are parallel and never intersect.

Front

What is the definition of a negative slope?

Back

A negative slope indicates that as one variable increases, the other variable decreases.

Front

What is the definition of a positive slope?

Back

A positive slope indicates that as one variable increases, the other variable also increases.

Front

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

Back

Proportional relationships have a constant ratio and pass through the origin; non-proportional do not.

Front

Back

(1, 2).

Front

What is the definition of a y-intercept?

Back

The y-intercept is the point where a line crosses the y-axis.