Question: In Exercises, (a) find the vertex; (b) find the axis of symmetry; (c) determine whether there is a maximum or minimum value and find that

In Exercises, (a) find the vertex; (b) find the axis of symmetry; (c) determine whether there is a maximum or minimum value and find that value; and (d) graph the function.
1. f (x) = x2 - 8x + 12
2. g(x) = x2 + 7x - 8

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