Horizontal and Vertical Lines

Front

What is the slope of a vertical line?

Back

UNDEFINED

Front

What is the equation of a horizontal line that passes through the point (0, 3)?

Back

y = 3

Front

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

Back

A vertical line that passes through the point (-4, y) for all values of y.

Front

What is the slope of a horizontal line?

Back

0

Front

What is the equation of a horizontal line that passes through the point (0, -10)?

Back

y = -10

Front

What type of line is represented by the equation y = 5?

Back

A horizontal line that passes through the point (x, 5) for all values of x.

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

How do you identify a vertical line on a graph?

Back

A vertical line goes straight up and down and has an undefined slope.

Front

How do you identify a horizontal line on a graph?

Back

A horizontal line goes straight left and right and has a slope of 0.