Question

Line AB contains points A (8, −4) and B (1, −5). The slope of line AB is....

Answer 1

The slope is 1/7.
Reason:
-5+4 -1 1
------ = ----- = -----
1-8 -7 7

Answer 2

`The\ slope\ of\ the\ line\ AB\ is (1)/(7) .`

Explanation:

Formula for slope

`m = (y_(2) - y_(1))/(x_(2) - x_(1))`

As the Line AB contains points A (8, −4) and B (1, −5).

Put points value in the above

`m = (y_(2) - y_(1))/(x_(2) - x_(1))`

`m = (- 5- (-4))/(1 - 8)`

`m = (- 5 + 4)/(1 - 8)`

`m = (- 1)/(-7)`

`m = (1)/(7)`

`Therefore\ the\ slope\ of\ the\ line\ AB\ is (1)/(7) .`