Zero and Undefined Slope

Front

What is the slope of the line represented by the equation y = -4?

Back

The slope is 0, as it is a horizontal line.

Front

What is the slope of the line that passes through the points (-2, 8) and (0, 8)?

Back

The slope is 0, indicating a horizontal line.

Front

What type of slope does the graph of the equation x = 1 have?

Back

The slope is undefined, as it is a vertical line.

Front

What type of slope does a horizontal line have?

Back

A horizontal line has a slope of zero.

Front

What type of slope does a vertical line have?

Back

A vertical line has an undefined slope.

Front

Which of the following lines has an undefined slope: y = 3, x = 0, x = -9, x = 2?

Back

The lines x = 0, x = -9, and x = 2 have undefined slopes; y = 3 has a slope of 0.

Front

Define zero slope in terms of a graph.

Back

Zero slope means the line is horizontal and does not rise or fall.

Front

Define undefined slope in terms of a graph.

Back

Undefined slope means the line is vertical and cannot be expressed as a ratio of rise over run.

Front

If a line has a slope of 0, what can be said about its y-coordinates?

Back

The y-coordinates remain constant for all x-values.

Front

If a line has an undefined slope, what can be said about its x-coordinates?

Back

The x-coordinates remain constant for all y-values.