Vertical and Horizontal Lines

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

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

Back

Horizontal line.

Front

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

Back

Vertical line.

Front

What does the equation x = 5 represent?

Back

A vertical line that passes through the point (5, y) for all values of y.

Front

What does the equation y = -3 represent?

Back

A horizontal line that passes through the point (x, -3) for all values of x.

Front

If a line has the equation y = 0, what type of line is it?

Back

It is a horizontal line.

Front

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

Back

It is a vertical line.

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.