how do i graph this

(a) Find the vertex and axis of symmetry of the quadratic function. (ob) Determine whether the graph is concave up or concave down. (c) Graph the quadratic function. g(x) = - (x-2) +3 (a) The vertex is (2,3). (Type an ordered pair.) The axis of symmetry is x=2. (Type an equation.) (b) The graph is concave down. (c) Use the graphing tool to graph the function