Algebra

Determine the approximate maximum distance
y=-0.01x2 +0.7x+6.1

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  1. -100 y = x^2 -70 x - 610

    x^2 - 70 x = -100 y + 610

    x^2 - 70 x + 1225 = -100y + 1835

    (x-35)^2 = -100 y + 1835
    vertex at x = 35
    then y =18.35

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