November International SAT MATH Discussion.

jkjk0202
Sun, 04 Nov 2012 00:18:30 +0000

guys, the answer for Question 20 of the 25 minute all MC section. It was the one with a shaded region over a parabola and under a line. I think is was what MUST be true?
I. xy > 0
II. y > x^2
III. lxl < 2
was NONE, here’s why
there are four possible points in the shaded area: (1,1), (-1,1), (2,4), and (-2,4)

1. (-1,1) and (-2,4) defies I.

2. (2,4) and (-2,4) defies II. because they are EQUAL, NOT greater than or less than 4

3. (2,4) and (-2,4) defies III. because l-2l and l2l are EQUAL to 2, NOT greater than or less than 2