AIR MATH

Math Question

Christian is rewriting an expression of the form \( y=a x^{2}+b x+c \) in the form \( y=a(x-h)^{2}+k \). Which of the following must be true?
\( h \) and \( k \) cannot both equal zero
\( k \) and \( c \) have the same value
the value of a remains the same
\( h \) is equal to one half \( -b \)

Solution

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