Please I need helppp

A)the vertex is (0,15)
B)h=2 and k=3
C)h=3 and k=2
D) (2,3) can be used as the extra point
E) the value in the equation is positive
F) the value in the equation is negative

Please I need helppp Athe vertex is 015 Bh2 and k3 Ch3 and k2 D 23 can be used as the extra point E the value in the equation is positive F the value in the equ class=