Question

What is the slope of the line passing through `(1,-1); (-2,0)`?

Answer 1

Slope: `(-1/3)`

Explanation:

For two general points `(x_1,y_1)` and `(x_2-y_2)`, the slope `m` is
`color(white)("XXX")m = (Delta y)/(Delta x) = (y_2-y_1)/(x_2-x_1)`

Given the specific points `(1,-1)` and `(-2,0)`, this becomes
`color(white)("XXX")m=(0-(-1))/(-2-1)=1/(-3) = -1/3`