Question: Answer each one as true or false:

a) The vertex of the parabola described by f(x) = \[2{{(x-3)}^{2}}-1\] is (3, 1).

b) The graph of f(x) = \[-2{{(x+4)}^{2}}-8\] has one y-intercept and two x-intercepts.

c) If f(x) = \[-{{x}^{3}}+4x\] then the graph of f falls to the left and falls to the right.

d) The maximum value of y for the quadratic function f(x) = \[-{{x}^{2}}+x+1\] is 1.