Horizontal and vertical lines

Front

What is the equation of a horizontal line?

Back

y = c, where c is a constant.

Front

What is the equation of a vertical line?

Back

x = c, where c is a constant.

Front

Identify the slope of a horizontal line.

Back

The slope of a horizontal line is 0.

Front

Identify the slope of a vertical line.

Back

The slope of a vertical line is undefined.

Front

What type of line is represented by the equation y = 2?

Back

Horizontal line.

Front

What type of line is represented by the equation x = -4?

Back

Vertical line.

Front

If a line has a slope of zero, what can be said about its orientation?

Back

It is a horizontal line.

Front

If a line has an undefined slope, what can be said about its orientation?

Back

It is a vertical line.

Front

What is the general form of the equation for a horizontal line through the point (3, 4)?

Back

y = 4.

Front

What is the general form of the equation for a vertical line through the point (3, 4)?

Back

x = 3.