Determine the intervals on which the graph of y = f(x) is concave up or concave down, and find the points of inflection. f(x) = (x²-3) ex Provide intervals in the form (*, *). Use the symbol co for infinity, U for combining intervals, and an appropriate type of parenthesis "(", ")", "[", or "]", depending on whether the interval is open or closed. Enter Ø if the interval is empty. Provide points of inflection as a comma-separated list of (x, y) ordered pairs. If the function does not have any inflection po enter DNE. Use exact values for all responses. f is concave up when x E Resor fis concave down when x E points of inflection: Question Source: Rogawski 4e Car

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