Answer:
y=-1/3x+1
Step-by-step explanation:
Perpendicular lines have opposite slopes, which means you take the opposite reciprocal of it (flip the fraction and use the opposite sign).
3 written as a fraction is 3/1, so to make it the opposite make it -1/3x
To get the equation of the line, use point slope shown below:
y-y1=m(x-x1)
y+2=-1/3(x-9)
y+2=-1/3x+3
y=-1/3x+1
