Answer:
y=-1/2 x +4
Step-by-step explanation:
find the slope of the line :
(5,6), (8,12)
m=y2-y1/x2-x1
m=12-6/8-5 = 6/3=2
find b : y=mx+b at a point 5,6
6=2(5)+b
b=-4
the function of the table is : y=2x -4
the slope of perpendicular line is opposite reciprocal :
y=-1/2 x +4 ( y=b when x=0)