vertical and horizontal lines

Front

What is a vertical line?

Back

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

Front

What is a horizontal line?

Back

A horizontal line is a line that goes straight across and has a slope of 0. Its equation is of the form y = b, where 'b' is a constant.

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

What is the equation of a horizontal line that passes through the point (4, 5)?

Back

The equation is y = 5.

Front

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

Back

The equation is x = 3.

Front

If a line has a slope of 0, what type of line is it?

Back

It is a horizontal line.

Front

If a line has an undefined slope, what type of line is it?

Back

It is a vertical line.

Front

What does the equation y = 2 represent?

Back

It represents a horizontal line that crosses the y-axis at 2.

Front

What does the equation x = -4 represent?

Back

It represents a vertical line that crosses the x-axis at -4.