Slope from two points

Front

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

Back

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

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.

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.

Front

What does a slope of zero mean?

Back

A slope of zero means the line is horizontal and there is no change in y as x changes.

Front

What does an undefined slope mean?

Back

An undefined slope means the line is vertical, and there is no change in x as y changes.

Front

Find the slope of the line that passes through the points (1, 2) and (3, 4).

Back

1

Front

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

Back

undefined

Front

If the slope of a line is 3, what does this tell you about the relationship between x and y?

Back

For every 1 unit increase in x, y increases by 3 units.

Front

Calculate the slope of the line that passes through the points (4, 5) and (6, 9).

Back

2

Front

What is the slope of a horizontal line?

Back

0