Slope formula

Front

What is the slope formula?

Back

The slope formula is m = (y2 - y1) / (x2 - x1), where m is the slope, (x1, y1) and (x2, y2) are two points on a line.

Tags

CCSS.8.EE.B.5

Front

What does a positive slope indicate?

Back

A positive slope indicates that as the x-value increases, the y-value also increases.

Tags

CCSS.8.EE.B.5

Front

What does a negative slope indicate?

Back

A negative slope indicates that as the x-value increases, the y-value decreases.

Tags

CCSS.8.EE.B.5

Front

What is a zero slope?

Back

A zero slope indicates a horizontal line where the y-value remains constant as the x-value changes.

Tags

CCSS.8.EE.B.5

Front

What is an undefined slope?

Back

An undefined slope occurs with a vertical line where the x-value remains constant and the y-value changes.

Tags

CCSS.8.EE.B.5

Front

Calculate the slope between the points (1, 2) and (3, 6).

Back

m = (6 - 2) / (3 - 1) = 4 / 2 = 2.

Tags

CCSS.8.EE.B.5

Front

If the slope of a line is -1/3, what does this mean?

Back

This means that for every 3 units the line moves to the right, it moves down 1 unit.

Tags

CCSS.8.EE.B.5

Front

What is the slope of a line that is vertical?

Back

The slope of a vertical line is undefined.

Tags

CCSS.8.EE.B.5

Front

What is the slope of a line that is horizontal?

Back

The slope of a horizontal line is 0.

Tags

CCSS.8.EE.B.5

Front

Find the slope given the points (2, 3) and (5, 11).

Back

m = (11 - 3) / (5 - 2) = 8 / 3.

Tags

CCSS.8.EE.B.5