Question

de  as cordenadas  do  vertice na  funçao
y  =  -3x²  + 2x  +1 

Answer 1

y=-x²+2x+1

$Xv=- \frac{b}{2a} = \frac{-2}{-6} = \frac{1}{3}$

$Yv= \frac{-(b^2-4ac)}{4a} = \frac{-(4+12)}{-4} = \frac{-16}{-4} =4$

$V( \frac{1}{3} ,4)$