Understanding Slope: Zero and Undefined

Front

What is slope?

Back

Slope is a measure of how steep a line is. It shows how much the line goes up or down as you move from left to right.

Front

What does a zero slope mean?

Back

A zero slope means the line is flat and does not go up or down. It is horizontal.

Front

What does an undefined slope mean?

Back

An undefined slope means the line goes straight up and down. It is vertical.

Front

Given the points (3, 9) and (6, 9), what is the slope of the line?

Back

Zero slope.

Front

Given the points (1, 6) and (4, 6), what is the slope of the line?

Back

Zero slope.

Front

Given the points (9, 3) and (9, 7), what is the slope of the line?

Back

Undefined slope.

Front

Given the points (3, 5) and (3, 8), what is the slope of the line?

Back

Undefined slope.

Front

Given the points (4, 1) and (4, 5), what is the slope of the line?

Back

Undefined slope.

Front

What is a horizontal line?

Back

A horizontal line is a line that goes left to right and has a slope of zero.

Front

What is a vertical line?

Back

A vertical line is a line that goes up and down and has an undefined slope.