A1 3.1 Horizontal and Vertical lines

Front

What is a horizontal line?

Back

A horizontal line is a straight line that runs parallel to the x-axis in a coordinate plane.

Front

What is a vertical line?

Back

A vertical line is a straight line that runs parallel to the y-axis in a coordinate plane.

Front

What is the equation of a horizontal line?

Back

The equation of a horizontal line is of the form y = k, where k is a constant.

Front

What is the equation of a vertical line?

Back

The equation of a vertical line is of the form x = k, where k is a constant.

Front

Which type of line has a slope of 0?

Back

A horizontal line has a slope of 0.

Front

Which type of line has an undefined slope?

Back

A vertical line has an undefined slope.

Front

If a line is represented by y = -6, what type of line is it?

Back

It is a horizontal line.

Front

If a line is represented by x = 4, what type of line is it?

Back

It is a vertical line.

Front

What type of line runs parallel to the x-axis?

Back

A horizontal line runs parallel to the x-axis.

Front

What type of line runs parallel to the y-axis?

Back

A vertical line runs parallel to the y-axis.