Finding Slope

Front

What is the slope of a horizontal line?

Back

0, zero

Front

What is the slope of a vertical line?

Back

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Front

How do you calculate the slope between two points (x1, y1) and (x2, y2)?

Back

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

Front

Find the slope of the line passing through (5, 15) and (6, 5).

Back

-10, -10/1

Front

Find the slope of the line passing through (6, 9) and (18, 7).

Back

-1/6

Front

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

Back

3, 3/1

Front

What does a positive slope indicate about a line?

Back

The line rises from left to right.

Front

What does a negative slope indicate about a line?

Back

The line falls from left to right.

Front

What is the slope of a line that is decreasing?

Back

Negative slope.

Front

What is the slope of a line that is increasing?

Back

Positive slope.