Question 42350
f(x) = x^2 - 2x - 6
vertex: ((-b/2a),f(x)) so (1,-7) and the parabola opens up because: {{{a>0}}}
Minimum value: y=-7
{{{ graph( 600, 600, -10, 10, -10, 10, x^2 - 2x - 6) }}}