Question

How do you find a standard form equation for the line with A ( 7, - 5 ); B ( - 5, 9 )?

Answer 1

`y=-7/6x-(19)/6`

Explanation:

find gradient
`m=(y2-y1)/(x2-x1)`
`m=(9--5)/(-5-7)`
`m=-14/12`
`m=-7/6`
then use `y=mx+c` to find `c`
`9=(-5xx-7/6)+c`
`c=(35)/6-9`
`c=(-19)/6`
therefore
`y=-7/6x-(19)/6`