Horizontal and Vertical Lines

Front

What is the equation of a vertical line that passes through the point (2, 3)?

Back

x = 2

Front

What is the equation of a horizontal line that passes through the point (4, -1)?

Back

y = -1

Front

How do you identify a vertical line on a graph?

Back

A vertical line is identified by a constant x-value, meaning it does not change regardless of the y-value.

Front

How do you identify a horizontal line on a graph?

Back

A horizontal line is identified by a constant y-value, meaning it does not change regardless of the x-value.

Front

What is the general form of the equation for a vertical line?

Back

x = a, where 'a' is a constant.

Front

What is the general form of the equation for a horizontal line?

Back

y = b, where 'b' is a constant.

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 = -4, what type of line is it?

Back

It is a vertical line.

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.