Vertical and Horizontal Lines

Front

What is the equation of a horizontal line?

Back

y = c, where c is a constant.

Front

What is the equation of a vertical line?

Back

x = c, where c is a constant.

Front

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

Back

Horizontal line.

Front

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

Back

Vertical line.

Front

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

Back

Horizontal line.

Front

What is the slope of a horizontal line?

Back

0.

Front

What is the slope of a vertical line?

Back

Undefined.

Front

If the equation of a line is x = -2, what type of line is it?

Back

Vertical line.

Front

If the equation of a line is y = 5, what type of line is it?

Back

Horizontal line.

Front

Which equation represents a vertical line?

Back

x = 4.