Question

How do you find the slope for (4,-5),(-1,-5)?

Answer 1

Slope `=0`

Explanation:

Given two points `(x_1,y_1)` and `(x_2,y_2)`
the slope is defined as
`color(white)("XXX")m=(Deltay)/(Deltax)=(y_2-y_1)/(x_2-x_1)`

For the given example we can replace
`color(white)("XXX")(x_1,y_1)` with `(4,5)` and
`color(white)("XXX")(x_2,y_2)` with (-1,5)#

So the slope is
`color(white)("XXX")m=(5-5)/(-1-4) = 0/(-5)=0`