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23 questions · page 2 of 2
SA-9709-P1-QD-0114 marksL4 ChallengingCalculatora ≠ 1
Express 5+4x−x2 in the form a−(x−b)2, and hence state the maximum value of 5+4x−x2. Salam Academy Original Practice · Proposed mark scheme
SA-9709-P1-QD-0124 marksL4 ChallengingCalculatorUnknown constants
The curve y=x2+px+q has a minimum point at (3,−7). Find p and q. Salam Academy Original Practice · Proposed mark scheme
SA-9709-P1-QD-0135 marksL5 ExtensionCalculatorUnknown constants
The curve y=x2−2kx+3k, where k is a positive constant, has its minimum point on the x-axis. Find k. Salam Academy Original Practice · Proposed mark scheme