Pre-Calculus

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Find the inverse of the following quadratic equation. Hint: Complete the square first.

y= x²+14x+50

  • Pre-Calculus -

    y = (x+7)^2 + 1
    x+7 = ±√(y-1)
    x = -7 ± √(y-1)

    As you can see from the ±, there is no one inverse. You have to pick which branch of the parabola you want to use.

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