Finding Slope

Front

What is the slope formula?

Back

The slope formula is m = (y2 - y1) / (x2 - x1), where m is the slope, (x1, y1) and (x2, y2) are two points on the line.

Front

Find the slope of the line with points (2, 3) and (4, 7).

Back

The slope is 2.

Front

Find the slope of the line with points (1, 8) and (3, 12).

Back

The slope is 2.

Front

What does a positive slope indicate?

Back

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

Front

What does a negative slope indicate?

Back

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

Front

What is the slope of a horizontal line?

Back

The slope of a horizontal line is 0.

Front

What is the slope of a vertical line?

Back

The slope of a vertical line is undefined.

Front

Find the slope of the line represented by the equation y = 3x + 2.

Back

The slope is 3.

Front

If the slope of a line is -1, what does this tell you about the line?

Back

The line decreases as it moves from left to right.

Front

Find the slope of the line that passes through the points (5, 10) and (5, 15).

Back

The slope is undefined.