Answer:
y=4/3x
Step-by-step explanation:
if you're looking for a perpendicular line then you must have the opposite reciprocal for the slope of your new line basically the slope must be flipped and the sign must change.
When you have that then you plug it into point slope form with your point that you want it to go through.
y-y1=m(x-x1)
looks like
y-12=4/3(x-9)
distribute 4/3 into the parenthesis
y-12=4/3x-12
add 12 to both sides
y=4/3x
