Horizontal and Vertical Lines

Front

What is a horizontal line?

Back

A horizontal line is a straight line that runs 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, 3)?

Back

y = 3

Front

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

Back

x = 4

Front

What does the equation y = 0 represent?

Back

The equation y = 0 represents a horizontal line that lies on the x-axis.

Front

What does the equation x = 5 represent?

Back

The equation x = 5 represents a vertical line that passes through the point (5, 0) on the x-axis.

Front

How can you identify a horizontal line on a graph?

Back

A horizontal line on a graph 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 on a graph will have an undefined slope and will not move left or right as it rises.

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.