Question 423689
-7x-9y=-2		
Find the slope of this line 						
9y=-7x+2
Divide by 9							
y=- 7/9	x		0.22		
Compare this equation with y=mx+b								
slope m =-0.78							
								
The slope of a line perpendicular to the above line will be the negative reciprocal -0.78								
m1*m2=-1								
The slope of the required line will be 1 2/7,	(1 2/7=1.29)
								
m=1.29	,point(4	,-2)	
Find b by plugging the values of m & the point in			
y=mx+b								
-2=5.14+	b				
b=-7.14							
m=1.29						
The required equation is	y=1.29x-7.14