Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)

$(3,2)$
The general equation for a parabola that has axis of symmetry parallel to the $y$-axis and opens up is given by: $(x−h)^2=4a(y−k)$ Where, $(h, k)$ is the vertex of the parabola. Therefore, the required vertex is $(3,2)$.