Question

What is the slope of the line shown below? (-1,8) and (2,-4)

Answer 1

`m = -4`

Explanation:

`(y2 - y1)/(x2 - x1)`

`(-4 - 8)/(2-(-1))`

`-4 - 8 = -12\\ 2-(-1)=3`

`(-12)/(3) = -4`

`m = -4`

Answer 2

M=-4

Explanation:

The formula for the slope is:

m=
`(y^(2) -y^(1) )/(x^(2) -x^(1) )`

You have two points the first one would be: (-1,8)

So
`x^(1)= -1  y^(1)= 8`

The second point is: (2,4)

So
`x^(2)= 2  y^(2)= 4`

Now you just have to put the values inside the formula:

m=
`(-4-8))/(2-(-1))`

m=
`(-12)/(3)`

m=-4