Question 669459
5      	x	+	1	y  	=	4					
Find the slope of this line										                                                                                                            	
											
1	y  	=	-5      	x	+	4    					
Divide by	1										
	y  	=	-5      	x	+	4    					
Compare this equation with y=mx+b,					m= slope & b= y intercept						
slope m =	-5    										
											
The slope of a line perpendicular to the above line will be the negative reciprocal										 1/5	
Because m1*m2 =-1											
The slope of the required line will be	 1/5								
											
m=	 1/5	,point	(	7	,	9	)				
Find b by plugging the values of m & the point in											
y=mx+b											
9	=	7/ 5	+	b							
b=	38/5										
m=	 1/5										
The required equation is y  	=	  1/ 5	x	+	38/ 5				
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