Question

Can you please help me with this

Answer 1

To get the slope (which we'll call n) of a line perpendicular to another line with slope a/b:

`n=(-b)/(a)`

Then just plug in the point and solve for your constant

Explanation:

`m=(4)/(1)` so

`n = -(1)/(4)`

we get

`y = -(1)/(4)x+b`

after plugging in:

`7=-(1)/(4)(-12) + b\\7=3+b\\4=b`

`y=-(1)/(4)x+4`