Vertical and Horizontal Lines

Front

What is a vertical line?

Back

A vertical line is a straight line that goes up and down and has an undefined slope. It 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 and has a slope of 0. It can be represented by an equation 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 vertical line that passes through the point (3, 5)?

Back

The equation is x = 3.

Front

What is the equation of a horizontal line that passes through the point (4, 2)?

Back

The equation is y = 2.

Front

If the equation of a line is y = 7, what type of line is it?

Back

It is a horizontal line.

Front

If the equation of a line is x = -4, what type of line is it?

Back

It is a vertical line.

Front

Which line has a slope of 0: y = 3 or x = 3?

Back

y = 3 has a slope of 0.

Front

What does it mean for a line to be vertical?

Back

A vertical line means that for any value of y, the x-coordinate remains constant.