(1 point) Find the absolute extrema of f(x) = 7 (1 + i + i) over the interval [6,4]. x x2 The absolute minimum occurs at (Enter the coordinates of the absolute minimum as an ordered pair. If the absolute minimum value occurs more than once, enter a comma-separated list, e.g., "(0,1), (1,5), (6,10)". If there is no absolute minimum, enter "none".) The absolute maximum occurs at (Enter the coordinates of the absolute maximum as an ordered pair. If the absolute maximum value occurs more than once, enter a comma-separated list, e.g., "(0,1), (1,5), (6,10)". If there is no absolute maximum, enter "none".) (1 point) Find all relative extrema of f(x) = x4 18x2 +12. Relative minima occur at (Enter the coordinates of each relative minimum as an ordered pair. If there is more than one relative minimum, enter a comma- separated list, e.g., "(0,1), (1,5), (6,10)"; if there are no relative minima, enter "none".) Relative maxima occur at (Enter the coordinates of each relative maximum as an ordered pair. If there is more than one relative maximum, enter a comma- separated list, e.g., "(0,1), (1,5), (6,10)"; if there are no relative maxima, enter "none".) (1 point) Find the absolute extrema of f (x) = x3 48x over the interval [0, 16]. The absolute minimum occurs at (Enter the coordinates of the absolute minimum as an ordered pair. If the absolute minimum value occurs more than once, enter a comma-separated list, e.g., "(0,1), (1,5), (6,10)". If there is no absolute minimum, enter "none".) The absolute maximum occurs at (Enter the coordinates of the absolute maximum as an ordered pair. If the absolute maximum value occurs more than once, enter a comma-separated list, e.g., "(0,1), (1,5), (6,10)". If there is no absolute maximum, enter "none".) (1 point) Find the absolute extrema of f (x) = x2 + 8x + 7 over the interval [4, 4]. The absolute minimum occurs at (Enter the coordinates of the absolute minimum as an ordered pair. If the absolute minimum value occurs more than once, enter a comma-separated list, e.g., "(0,1), (1,5), (6,10)". If there is no absolute minimum, enter "none".) The absolute maximum occurs at (Enter the coordinates of the absolute maximum as an ordered pair. If the absolute maximum value occurs more than once, enter a comma-separated list, e.g., "(0,1), (1,5), (6,1 0)". If there is no absolute maximum, enter "none".)