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 page. It has a constant y-value and can be represented by the equation y = k, where k is a constant.

Front

What is a vertical line?

Back

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

Front

What is the equation of a horizontal line that passes through the point (0, -4)?

Back

y = -4

Front

What is the equation of a vertical line that passes through the point (-4, 0)?

Back

x = -4

Front

How can you identify a horizontal line on a graph?

Back

A horizontal line will have a slope of 0 and will not rise or fall as it moves from left to right.

Front

How can you identify a vertical line on a graph?

Back

A vertical line will have an undefined slope and will not move left or right as it goes up and down.

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

If the equation of a line is y = 3, what type of line is it?

Back

It is a horizontal line.

Front

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

Back

It is a vertical line.