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4.Use the definition of continuity and properties of limits to show that the function is continuous at a given number 6. For what value of the constant c is the function f continuous on (-infinity,infinity)?

7. Find the values of a and b that makes f continuous everywhere.

8.Use the Intermediate Value Theorem to show that there is a root of the given equation in the specified interval.

10.How would you “remove the discontinuity” of f? In other words, how would you define f(5) in order to make a f continuous at 5?