Question

What is the equation of the line with slope `m= -2` that passes through `(1,-3)`?

Answer 1

`color(white)(xx)y=-2x-1`

Explanation:

`color(white)(xx)y-y_0=m(x-x_0)`

`=>y+3=-2(x-1)`
`=>y+3color(red)(-3)=-2x+2color(red)(-3)`
`=>y=-2x-1`
graph{-2x-1 [-10, 10, -5, 5]}