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10 February, 19:00

Let f (x) = 2/5x^2-2. The function g (x) is a vertical stretch of f (x) by the factor 2. What is the equation of g (x) ?

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  1. 10 February, 19:13
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    g (x) = (4/5) x^2 - 2

    Step-by-step explanation:

    Start with the given f (x) = 2/5x^2-2 and multiply (2/5) x^2 by 2, obtaining

    g (x) = 2 (2/5) x^2 - 2, or

    g (x) = (4/5) x^2 - 2
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