Question

What is the slope of the line passing through the following points: `(-2, -4) ; (1,5)`?

Answer 1

Slope `m` of a line passing through two points `A(x_1,y_1)` and `B(x_2,y_2)` is given by

`m=(y_2-y_1)/(x_2-x_1)`

Here let `A=(-2,-4) and B=(1,5)`

`implies m=(5-(-4))/(1-(-2))=(5+4)/(1+2)=(9)/3=3`

`implies` slope of the line passing through the given points is `3`.