Finding Slope

Front

What is the formula to find the slope of a line?

Back

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

Front

Find the slope of the line passing through the points (3, 9) and (4, 12).

Back

Slope = (12 - 9) / (4 - 3) = 3

Front

Find the slope of the line passing through the points (2, 5) and (3, 4).

Back

Slope = (4 - 5) / (3 - 2) = -1

Front

What does a positive slope indicate about a line?

Back

A positive slope indicates that the line rises as it moves from left to right.

Front

What does a negative slope indicate about a line?

Back

A negative slope indicates that the line falls as it moves from left to right.

Front

What is the slope of a vertical line?

Back

The slope of a vertical line is undefined.

Front

What is the slope of a horizontal line?

Back

The slope of a horizontal line is 0.

Front

Find the slope of the line passing through the points (1, 2) and (1, 5).

Back

Slope = (5 - 2) / (1 - 1) = undefined

Front

Find the slope of the line passing through the points (0, 0) and (4, -16).

Back

Slope = (-16 - 0) / (4 - 0) = -4

Front

Find the slope of the line passing through the points (2, 3) and (4, 0).

Back

Slope = (0 - 3) / (4 - 2) = -3/2