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Master gmat 2010 part 33
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To determine the point at which two nonparallel lines intersect on the coordinate plane, first determine the equation for each line. Then, solve for x and y by either substitution or addition-subtraction. 24. In the standard xy-coordinate plane, the xy-pairs (0,2) and (2,0) define a line, and the xy-pairs (22,21) and (2,1) define another line.