Slope from 2 points

Front

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

Back

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

Front

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

Back

-2

Front

Find the slope of the line that passes through: (-2, 8) and (0, 8)

Back

0

Front

Find the slope of the line that passes through: (-12, -5) and (0, -8)

Back

-1/4

Front

Find the slope of the line that passes through: (6,7) and (4,2)

Back

5/2

Front

Find the slope of the line that passes through: (-3, -4) and (7, 6)

Back

1

Front

What does a slope of 0 indicate about a line?

Back

The line is horizontal.

Front

What does an undefined slope indicate about a line?

Back

The line is vertical.

Front

If the slope of a line is positive, what does that indicate about the direction of the line?

Back

The line rises from left to right.

Front

If the slope of a line is negative, what does that indicate about the direction of the line?

Back

The line falls from left to right.