Wednesday, August 10, 2011
Math Question Help!!!! Geometry?
(2,4). Ordered pairs are traditionally understood to refer to horizontal, vertical coordinates which almost since analytic geometry was invented was refered to as the x and y coordinates. Hence (2,4) means the point in the Cartesian coordinate plane where the line defined by all points whose horizontal component is 2, which is to say x=2, intersects with the line defined by all points whose vertical component is 4, which is to say, by these conventions, that y=4. Now knowing that the first number in each ordered pair is the value of x and the second is the value of y, the x and y values for each possible answer could be plugged into the inequality given revealing that the only answer that satisfies the inequality is the first one with x=2 and y=4. None of the others could satisfy the inequality because thye all evaluate to negative numbers and the inequality requires that 3x+4y evaluate to a number greater than 17 whereas all the other possible answers evaluate to negative numbers which are always less than any positive number.
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