Question

How do you find the slope parallel to `-15 +3y = -12x`?

Answer 1

A linear equation which can be expressed in the form
`color(white)("XXXXX")y = mx+b`
has a slope of `m`
and so do all lines parallel to it.

`-15+3y = -12x`

`rarr 3y = -12x +15`

`rarr y = -4x + 5`

All lines parallel to `-15+3y=-12` have a slope of `(-4)`