Finding Slope

Front

What is the slope of the line passing through (3, 9) and (4, 12)?

Back

3 (or 3/1)

Front

What is the slope of the line passing through (2, 4) and (6, 0)?

Back

-4

Front

What is the slope of a horizontal line?

Back

0 (zero)

Front

What is the slope of the line passing through (1, 2) and (4, -1)?

Back

-5/3

Front

What is the slope formula?

Back

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

Front

If a line has a slope of 2, what does this mean?

Back

For every 1 unit increase in x, y increases by 2 units.

Front

What is the slope of a vertical line?

Back

Undefined

Front

How do you find the slope from a graph?

Back

Choose two points on the line, use the slope formula.

Front

What does a positive slope indicate?

Back

The line rises from left to right.

Front

What does a negative slope indicate?

Back

The line falls from left to right.