11/20 ACE Algebra I FINDING SLOPE

Front

What is the formula to find the slope of a line given two points (x1, y1) and (x2, y2)?

Back

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

Front

Find the slope given the points (-7,-4) and (5,8).

Back

1

Front

Find the slope given the points (-6,1) and (3,5).

Back

4/9

Front

Find the slope given the points (1,-9) and (3,-3).

Back

3

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 horizontal line?

Back

0

Front

What is the slope of a vertical line?

Back

Undefined

Front

If the slope of a line is 2, what does this mean in terms of rise over run?

Back

For every 2 units of rise, there is 1 unit of run.

Front

Find the slope given the points (2,3) and (4,7).

Back

2