A quadratic function y=f(x)y=f(x) is plotted on a graph and the vertex of the resulting parabola is (6, -4)(6,−4). What is the vertex of the function defined as g(x)=f(x+2)g(x)=f(x+2)?

Ahovercraft takes off from a platform. its height (in meters), xx seconds after takeoff, is modeled by: h(x)=-2x^2+20x+48h(x)=−2x 2 +20x+48 what is the maximum height that the hovercraft will reach?