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Consider the curve in the xy-plane defined by a2 - y = 1. It is known that da dy 5x dry 25 5 - and

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Consider the curve in the xy-plane defined by a2 - y = 1. It is known that da dy 5x dry 25 5 - and da 2 Which of the following statements is true about the curve in Quadrant IV ? A The curve is concave up because - > 0. dy B dy The curve is concave down because 0. D The curve is concave down because dry

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