Horizontal and Vertical Lines

Front

What is a horizontal line?

Back

A horizontal line is a straight line that runs from left to right across the graph. It has a constant y-value and can be represented by the equation y = c, where c is a constant.

Front

What is a vertical line?

Back

A vertical line is a straight line that runs up and down the graph. It has a constant x-value and can be represented by the equation x = c, where c is a constant.

Front

What is the slope of a horizontal line?

Back

The slope of a horizontal line is 0.

Front

What is the slope of a vertical line?

Back

The slope of a vertical line is undefined.

Front

How can you identify a horizontal line on a graph?

Back

A horizontal line can be identified by its constant y-value across all x-values.

Front

How can you identify a vertical line on a graph?

Back

A vertical line can be identified by its constant x-value across all y-values.

Front

What is the equation of a horizontal line that passes through the point (3, 4)?

Back

The equation is y = 4.

Front

What is the equation of a vertical line that passes through the point (5, 2)?

Back

The equation is x = 5.

Front

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

Back

It is a horizontal line.

Front

If a line has the equation x = -3, what type of line is it?

Back

It is a vertical line.