Question

Solve for vertex f(x) = -(x-1)^2 +4

Answer 1

`f(x) = -(x-1)^2 +4 \\ f(x) = - {x}^(2) + 2x + 3`

`x_0 = ( - b)/(2a) \\ x_0 = ( - 2)/(2 * ( - 1)) = 1`

`y_0 = - {(1)}^(2) + 2 * 1 + 3 = 4`

Answer: (1, 4)