Question 854988
y=mx+b
m is the slope and 
b is the value of y when x=0 It is often called the y intercept
Parallel lines have the same slope
the product of the slopes of perpendicular lines is -1
so if the slope of one line is 4 the slope of the other is -1/4 (4*-1/4=-1)
The slope of the line  y=-2/3x+2 is -2/3 
So the slope of the line perpendicular line is 3/2  

3/2*(-2/3)=-1

point (9,-3)
y=mx+b
   m = 3/2,   x = 9,   y = -3
-3=3/2*(9)+b
b = -33/2,

y=3x/2-33/2

the two perpendicular lines cross  at x = 111/13,   y = -48/13