Horizontal and Vertical lines

Front

What type of line has a slope of 0?

Back

A horizontal line.

Front

What is the equation of a horizontal line that passes through y = -4?

Back

y = -4.

Front

What type of line is represented by the equation x = 3?

Back

A vertical line.

Front

What is the equation of a vertical line that passes through the point (3, y)?

Back

x = 3.

Front

What is the equation of a vertical line that passes through the point (-3, 5)?

Back

x = -3.

Front

What is the slope of a vertical line?

Back

Undefined.

Front

What is the slope of a horizontal line?

Back

0.

Front

How do you identify a horizontal line on a graph?

Back

It runs parallel to the x-axis.

Front

How do you identify a vertical line on a graph?

Back

It runs parallel to the y-axis.

Front

What is the general form of the equation for a horizontal line?

Back

y = b, where b is a constant.