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18 October, 23:35

Let f (x) = x2-18x+157 .

What is the vertex form of f (x) ?

What is the minimum value of f (x) ?

Enter your answers in the boxes.

Vertex form: f (x) =

Minimum value of f (x) : y =

+3
Answers (1)
  1. 18 October, 23:59
    0
    Hello:

    f (x) = x²-18x+157

    = x²-2 (9) (x) + 9²-9²+157

    = (x-9) ² - 9²+157

    f (x) = (x-9) ²+76 ... (the vertex form of f (x))

    Minimum value of f (x) : y = 76
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