Horizontal and Vertical Lines

Front

What is a vertical line?

Back

A vertical line is a straight line that goes up and down and has an equation of the form x = a, where 'a' is a constant.

Front

What is a horizontal line?

Back

A horizontal line is a straight line that goes left and right and has an equation of the form y = b, where 'b' is a constant.

Front

What is the equation of a vertical line that passes through the point (5, 0)?

Back

x = 5

Front

What is the equation of a horizontal line that passes through the point (0, -3)?

Back

y = -3

Front

How can you identify a vertical line on a graph?

Back

A vertical line will have all points with the same x-coordinate.

Front

How can you identify a horizontal line on a graph?

Back

A horizontal line will have all points with the same y-coordinate.

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

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

Back

It is a horizontal line.

Front

If the equation of a line is x = -4, what type of line is it?

Back

It is a vertical line.