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Algebra 7 Online
OpenStudy (xo_just4me_xo):

Christian is rewriting an expression of the form y = ax2 + bx + c in the form y = a(x – h)2 + k. Which of the following must be true? A. h and k cannot both equal zero B. k and c have the same value C. the value of a remains the same D. h is equal to one half –b

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