Vertical and Horizontal Lines

Front

What is the definition of a vertical line in a coordinate plane?

Back

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

Front

What is the definition of a horizontal line in a coordinate plane?

Back

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

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

How can you identify a vertical line on a graph?

Back

A vertical line can be identified on a graph as a line that runs parallel to the y-axis.

Front

How can you identify a horizontal line on a graph?

Back

A horizontal line can be identified on a graph as a line that runs parallel to the x-axis.

Front

What is the equation of a vertical line that passes through the point (3, 5)?

Back

The equation of the vertical line is x = 3.

Front

What is the equation of a horizontal line that passes through the point (4, -2)?

Back

The equation of the horizontal line is y = -2.

Front

What type of line does the equation y = 10 represent?

Back

The equation y = 10 represents a horizontal line.

Front

What type of line does the equation x = -4 represent?

Back

The equation x = -4 represents a vertical line.