Vertical and Horizontal Lines

Front

What is a vertical line?

Back

A vertical line is a straight line that runs up and down and is parallel to the y-axis.

Front

What is a horizontal line?

Back

A horizontal line is a straight line that runs left to right and is parallel to the x-axis.

Front

What is the slope of a vertical line?

Back

The slope of a vertical line is undefined.

Front

What is the slope of a horizontal line?

Back

The slope of a horizontal line is 0.

Front

What is the equation of a horizontal line?

Back

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

Front

What is the equation of a vertical line?

Back

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

Front

Does the equation y = -3 represent a vertical line, a horizontal line, or neither?

Back

It represents a horizontal line.

Front

Which type of line runs parallel to the y-axis?

Back

Vertical line.

Front

What does it mean if a line has a slope of 0?

Back

It means the line is horizontal.

Front

What does it mean if a line is vertical?

Back

It means the line does not change in the x-direction and runs parallel to the y-axis.