Question

How do you write an equation in standard form for a line passing through B(0, 0), C(4, -4)?

Answer 1

`y=-x`

Explanation:

`y=ax+b`
`B(0,0)`
`0=a*0+b`
`0=b`

`y=ax`
`C(4,-4)`
`-4=a*4|:4`
`-1=a`