Answer:
y = -6/5x + 13 4/5
Explanation:
Step 1: Perpendicular slope
We need to find the perpendicular slope, or the opposite reciprocal.
This means we change the sign (positive, negative)and flip the numbers
Perpendicular sope to 5/6x = -5/6x = -6/5x
Step 2: Plug in coordinates
Now we plug in the coordinates for y = -6/5x + b
3 = -6/5(9) + b
3 = -10.8 + b
b = 13.8 or 13 4/5
-Chetan K