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9. Carefully determine the behavior of the function h (x) = ( x -4) by making numerical (x+ 2)? ( x -4) arguments. The first one is done for you: As x approaches -2 from the left This means x is very close to, but slightly less than, -2. We can analyze each factor: The (x-4) factors are very close to -6, the (x+2) factor is very close to 0, and positive since it is squared. Overall this is a -6 in the numerator and a very small negative number in the denominator, so the function is approaching positive infinity. b. As x approaches -2 from the right C. As x approaches 4 from the left d. As x approaches 4 from the right e. As x approaches infinity