Horizontal and Vertical Lines

Front

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

Back

A horizontal line is a straight line that runs left to right across the coordinate plane and has a constant y-value. Its equation is of the form y = k, where k is a constant.

Front

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

Back

A vertical line is a straight line that runs up and down the coordinate plane and has a constant x-value. Its equation is of the form x = h, where h is a constant.

Front

What is the equation of the horizontal line that passes through the point (0, 2)?

Back

The equation is y = 2.

Front

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

Back

The equation is x = 3.

Front

How can you identify a horizontal line from its equation?

Back

A horizontal line can be identified by an equation of the form y = k, where k is a constant.

Front

How can you identify a vertical line from its equation?

Back

A vertical line can be identified by an equation of the form x = h, where h is a constant.

Front

What is the slope of a horizontal line?

Back

The slope of a horizontal line is 0.

Tags

CCSS.8.EE.B.5

Front

What is the slope of a vertical line?

Back

The slope of a vertical line is undefined.

Tags

CCSS.8.EE.B.5

Front

If the equation of a line is y = -4, 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.