Determine whether each function has a maximum or minimum value, and find that
value. Then state the domain and range of the function.
7. f(x) = -32 + 6x - 1
3. f(x)=x2 + 3x - 12
9. f(x) = 3x2 + 8x + 5
10. f(x) = -472 + 10% - 6