A quadratic function g is given. g(x)=3x²-12x + 13 (a) Express g in standard form. g(x) = (b) Sketch a graph of g. -15 -10 -5 10 -10 -20 -15 -10 -5 20 10 10 10 -10 x 10 15 -15 -10 -5 20 20 10 -10 T x 10 15 -15 -10 -5 (c) Find the maximum or minimum value of g. g(x)= Is this a maximum or minimum value? O maximum value minimum value 20 10 5 10 -10 -20 10 15 5 10 15