precalc

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sine curve in the form of y = a sin(pi/2x) that passes through the point (2.5,-9.546)

  • precalc -

    pi/2 * 5/2 = 5/4 pi
    so, we want a sin(5/4 pi) = -9.546

    Since sin 5/4 pi = -1/√2, we want

    a (-1/√2) = -9.546
    a = 13.5

    So, y = 13.5 sin(pi/2 x)

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