Slope from ordered pairs and tables

Front

What is the formula to calculate the slope (m) between two points (x1, y1) and (x2, y2)?

Back

m = (y2 - y1) / (x2 - x1)

Tags

CCSS.8.EE.B.5

Front

Find the slope of the line that passes through the points (2, 3) and (5, 11).

Back

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

Tags

CCSS.8.EE.B.5

Front

What does a positive slope indicate about a line?

Back

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

Tags

CCSS.8.EE.B.5

Front

What does a negative slope indicate about a line?

Back

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

Tags

CCSS.8.EE.B.5

Front

Find the slope of the line that passes through the points (0, 0) and (4, 8).

Back

m = (8 - 0) / (4 - 0) = 2

Tags

CCSS.8.EE.B.5

Front

If the slope of a line is 0, what does this mean about the line?

Back

A slope of 0 means the line is horizontal.

Tags

CCSS.8.EE.B.5

Front

If the slope of a line is undefined, what does this mean about the line?

Back

An undefined slope means the line is vertical.

Tags

CCSS.8.EE.B.5

Front

Find the slope of the line that passes through the points (1, 2) and (3, 6).

Back

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

Tags

CCSS.8.EE.B.5

Front

What is the slope of a line represented by the equation y = 3x + 2?

Back

The slope (m) is 3.

Tags

CCSS.8.EE.B.5

Front

Find the slope of the line that passes through the points (-2, -1) and (2, 3).

Back

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

Tags

CCSS.8.EE.B.5