Question 375682
(x,9)and(4,5) m=2 
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slope m = y2-y1/x2-x1  where (x1,y1)& (x2,y2) are the points
m= 5-9 / 4-x
2= -4/(4-x)
multiply by (4-x)
2(4-x)=-4
8-2x=-4
-8
-2x=-8-4
-2x=-12
/-2
x=6

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similarly you can work on the next problem. you will walk through

m.ananth@hotmail.ca
(9,-4)and(3,y) m=2/3