Vertical and Horizontal Lines

Front

What is a vertical line?

Back

A vertical line is a straight line that runs up and down, parallel to the y-axis. It has an undefined slope.

Front

What is a horizontal line?

Back

A horizontal line is a straight line that runs left to right, parallel to the x-axis. It has a slope of 0.

Front

What is the equation of a vertical line?

Back

The equation of a vertical line is in the form x = a, where 'a' is a constant.

Front

What is the equation of a horizontal line?

Back

The equation of a horizontal line is in the form y = b, where 'b' is a constant.

Front

What does a slope of 0 indicate?

Back

A slope of 0 indicates a horizontal line.

Front

What does an undefined slope indicate?

Back

An undefined slope indicates a vertical line.

Front

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

Back

Vertical line.

Front

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

Back

Horizontal line.

Front

If the equation is x = 4, what type of line does it represent?

Back

Vertical line.

Front

If the equation is y = -3, what type of line does it represent?

Back

Horizontal line.