Question 627539
The vertex is (-4,7).
The line of symmetry is {{{highlight(x = -4)}}}.
f(x) has a minimum value when x = -4. The minimum value is f(-4) = {{{highlight(7)}}}.
The graph of {{{f(x) = (1/3)(x+4)^2+7 }}} is {{{graph( 300, 200, -10, 3, -3, 15, (1/3)(x+4)^2+7)}}}