1-5 1 The function f graphed below is defined by a polyno- mial expression of degree 4. Use the graph to solve the exercises. y A 3 5. The solutions of the equation f(x) = 0 are the -intercepts of the graph of f. The solution of the inequality f(x) 0 is the set of x-values at which the graph of f is on or above the -axis. From the graph of f we find that the solutions of the equation f(x) = 0 are x = and x = and the solution of the inequality f(x) 2 0 is

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