Finding Slope from Two Points

Front

What is the formula to find the slope (m) between two points (x1, y1) and (x2, y2)?

Back

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

Front

Find the slope given these points: (2,-4) & (3,1)

Back

5

Front

Find the slope given these points: (-8,4) & (-5,1)

Back

-1

Front

Find the slope given these points: (4,-4) & (2,0)

Back

-2

Front

Find the slope given these points: (-1,7) & (2,2)

Back

-5/3

Front

Find the slope given these points: (-2,-3) & (2,3)

Back

3/2

Front

What does a positive slope indicate about a line?

Back

A positive slope indicates that the line rises as it moves from left to right.

Front

What does a negative slope indicate about a line?

Back

A negative slope indicates that the line falls as it moves from left to right.

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.