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2. State the negation of Bc ER,VY ER, if x - y > 1, then (y > 1 or y < -1). You do not need to prove or disprove the statement. [3 marks]
5. Let 2 and y be real numbers. Prove that x?y2 - ry ey- 1. [3 marks)
2. (12 points) I 2? + 3.0 -1 if > 2 (a) Let f(x) = { Find all values of k such that f is k2.– 1-1 if I<2 continuous at r = 2. (b) Find the point(s) on the curve y² +ry-r? = 9 where the tangent line is parallel to the line 2.0 + 4y +3=0.
