Vertical and Horizontal Lines

Front

What is the slope of a horizontal line?

Back

The slope of a horizontal line is 0.

Front

What is the slope of a vertical line?

Back

The slope of a vertical line is undefined.

Front

What is the equation of a horizontal line?

Back

The equation of a horizontal line can be written as y = k, where k is a constant.

Front

What is the equation of a vertical line?

Back

The equation of a vertical line can be written as x = h, where h is a constant.

Front

How can you identify a horizontal line on a graph?

Back

A horizontal line runs parallel to the x-axis and has a constant y-value.

Front

How can you identify a vertical line on a graph?

Back

A vertical line runs parallel to the y-axis and has a constant x-value.

Front

What does the graph of the equation y = -3 look like?

Back

The graph of y = -3 is a horizontal line that crosses the y-axis at -3.

Front

What does the graph of the equation x = 4 look like?

Back

The graph of x = 4 is a vertical line that crosses the x-axis at 4.

Front

What type of line does the equation y = -4 represent?

Back

The equation y = -4 represents a horizontal line.

Front

What type of line does the equation x = -4 represent?

Back

The equation x = -4 represents a vertical line.