Horizontal and Vertical Lines

Front

What is a vertical line?

Back

A vertical line is a straight line that goes up and down. It has an undefined slope and can be represented by an equation of the form x = a, where 'a' is a constant.

Front

What is a horizontal line?

Back

A horizontal line is a straight line that goes left and right. It has a slope of 0 and can be represented by an equation of the form y = b, where 'b' is a constant.

Front

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

Back

x = 4

Front

What is the equation of a horizontal line that passes through the point (0, -1)?

Back

y = -1

Front

Which line represents the equation x = 2?

Back

A vertical line that crosses the x-axis at 2.

Front

Which line represents the equation y = 4?

Back

A horizontal line that crosses the y-axis at 4.

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

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

Back

It is a horizontal line.

Front

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

Back

It is a vertical line.