Finding Slope

Front

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

Back

Slope (m) = (change in y) / (change in x)

Front

What does a positive slope indicate about a line?

Back

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

Front

What does a negative slope indicate about a line?

Back

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

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 that passes through the points (2, 4) and (6, 12).

Back

Slope = (12 - 4) / (6 - 2) = 2.

Front

Find the slope of the line that passes through the points (1, 8) and (3, 12).

Back

Slope = (12 - 8) / (3 - 1) = 2.

Front

Find the slope of the line that passes through the points (-1, 5) and (-2, 6).

Back

Slope = (6 - 5) / (-2 + 1) = -1.

Front

If the slope of a line is 3, what does this mean?

Back

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

Front

What is the slope of the line represented by the equation y = 5x + 2?

Back

The slope is 5.