Slope and Missing Coordinate Review

Front

What is the formula for calculating slope?

Back

The formula for slope (m) is given by: m = \frac{y_2 - y_1}{x_2 - x_1}.

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, meaning the line rises from left to right.

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, meaning the line falls from left to right.

Tags

CCSS.8.EE.B.5

Front

What does a zero slope indicate about a line?

Back

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

Tags

CCSS.8.EE.B.5

Front

What does an undefined slope indicate about a line?

Back

An undefined slope indicates a vertical line where x remains constant as y changes.

Tags

CCSS.8.EE.B.5

Front

If the slope of a line is -4, what does this mean?

Back

This means that for every 1 unit increase in x, y decreases by 4 units.

Tags

CCSS.8.EE.B.5

Front

How do you find a missing coordinate using slope?

Back

Use the slope formula m = \frac{y_2 - y_1}{x_2 - x_1} and rearrange to solve for the missing coordinate.

Tags

CCSS.8.EE.B.6

Front

What is the slope between the points (2, 3) and (5, 11)?

Back

The slope is m = \frac{11 - 3}{5 - 2} = \frac{8}{3}.

Tags

CCSS.8.EE.B.5

Front

What is the slope between the points (-3, y) and (1, -7) if m = -4?

Back

The missing value y is 9.

Tags

CCSS.8.EE.B.6

Front

What is the slope between the points (1, 3) and (8, y) if m = \frac{-12}{7}?

Back

The missing value y is -9.

Tags

CCSS.8.EE.B.6