Question

What is the slope of the line that contains the points (9,-4) and (1, -5)

Answer 1

Answer:

A. 1/8

Step-by-step explanation:

m = rise/run

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

m = (-5- - 4)/(1-9)

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

m = (-1)/(-8)

m = 1/8

Answer 2

Answer:

The answer is A.

Step-by-step explanation:

Given that the formula to find gradient, m, is :

$m = \frac{y2 - y1}{x2 - x1}$

Then, you have to substitute the coordinates into the formula :

$let \: (9, - 4) \: be \: (x1,y1) \\ let \: (1, - 5) \: be \: (x2,y2)$

$m = \frac{ - 5 - ( - 4)}{1 - 9}$

$m = \frac{ - 5 + 4}{ - 8}$

$m = \frac{ - 1}{ - 8}$

$m = \frac{1}{8}$