Question

постройте график функции у=2(х+3)^2-1   у=(х-1)^3+2

Answer 1

$1) \ y=2x^{2}+12x+17 \ -2x^{2}-12x=-y+17 \ x^{2} +6x= frac{y}{2}- frac{17}{2} \ (x+3)^{2}= frac{y+1}{2} \ x_{1}+3= frac{ sqrt{y+1} }{ sqrt{2} } \ x_{2} +3=- frac{ sqrt{y+1} }{ sqrt{2} } \ x_{1} = frac{ sqrt{y+1}- sqrt{2*3} }{ sqrt{2} } \ x_{2} = frac{- sqrt{y+1}- sqrt{2*3} }{ sqrt{2} } \ 2)--$