Question 469034
m=		3.00	

y=mx+b
Find b
intercepts x axis at (7,0)				
							
Plug value of  the slope  and point (7,0) in
Y 	=	m	x 	+	b		
0.00	=	21	+	b			
b=	0		21				
b=	-21						
So the equation  will be							
Y 	=	3x -21		
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