Hi All,
When dealing with a graphing question, it often helps to convert any equations you've been given into "slope-intercept" format (and you might find it helpful to physically draw the graph so you can see it).
Here, we're given the line X = 2Y = 5. Converting that into slope-intercept gives us:
2Y = X - 5
Y = X/2 - 5/2
We're then told that the line passes through the points (M,N) and (M+2,N+P). We're asked for the value of P.
Since we have the line, we can TEST a set of co-ordinate for (M,N)
IF.....
X = 0
Y = -5/2
So (M,N) is the point (0, -5/2)
The second point is (M+2,N+P)
Since our M = 0......M+2 = 2..... we have to see what happens when....
X = 2
Y = 1 - 5/2 = -3/2
So (M+2,N+P) is the point (2, -3/2)
So between the first point and the second point, what has happened to the Y co-ordinate? It went from -5/2 to -3/2, so it INCREASED by 1.
Thus, P = 1
Final Answer:
GMAT assassins aren't born, they're made,
Rich
I have been doing the EMPOWERgmat prep for the last month and I have already seen an improvement. You focus on very simple methods of breaking problems down. I'm not quite an assassin yet but I have to be soon. Thanks for the help.