The quadrilateral ABCD is bounded by the lines x = 1, y = 2, 2y = x and x + y = 9. The region inside the quadrilateral is defined by four inequalities. Two of these are y > 2 and 2y > x. [Figure X.X]
- (a)Write down the other two inequalities.[2]
- (b)How many points, with integer coordinates, lie inside the quadrilateral ABCD?[1]
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