Find the vertex of the parabola defined by the equation y, equals, minus, start fraction, 1, divided by, 28, end fraction, x, squared, plus, start fraction, 5, divided by, 14, end fraction, x, minus, start fraction, 137, divided by, 28, end fractiony=−
28
1
x
2
+
14
5
x−
28
137
.
