Question 19731
(2,y), (3,3), m=2 
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Now suppose we have a line through these two points
slope of the line would be:
M=difference in y-coordinates/difference in x-coordinates
M=(y-3)/(2-3)
M=(y-3)/-1
M=-(y-3)
M=-y+3
M=3-y
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But we have been told that the slope is 2
so we put this value in place of M
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2=3-y
2-3=-y
-1=-y
1=y
y=1
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Hope this helps,
-xC