Question

What line includes the points `(2, 3)` and `(- 1,-24)`?

Answer 1

Find the slope, then substitute the slope and another point in to find `c`.

Explanation:

`"slope" = (-24-3)/(-1-2) = 9`

So far

`y=9x+c`

Substitute in the point `(2,3)`

`3=9(2)+c`

`3=18+c`

`-15=c`

Therefore, the line is

`y=9x-15`