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Answer:
[tex]y = a {(x - b)}^{2} + c \\ vertrix \: \binom{b}{c} = \binom{ - 3}{2} \\ point \: \binom{ - 1}{ - 2} \\ - 2 = a {(( - 1) - ( - 3))}^{2} + 2 \\ - 4 = a4 \\ \therefore \: a = - 1 \\ y = - {(x + 3)}^{2} + 2 \\y = - {x}^{2} - 6x - 9 + 2 \\ y = - {x}^{2} - 6x - 7[/tex]