Determine the quadratic function f whose graph is given. The vertex is (2,-1) and the other given point is (1,2)
y=a(x-2)2-1
2=a(1-2)2-1
2=a-1
3=a
y=3(x-2)2-1
y=3(x2-4x+4)-1
y=3x2-12x+11
+1072 
