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Given f(x) = x +1 and g(x) = x − 2, perform the indicated operation f*g and supply...

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spock7 | Student, Undergraduate | (Level 1) Honors

Posted May 8, 2012 at 4:31 PM via web

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Given f(x) = x +1 and g(x) = x − 2, perform the indicated operation f*g and supply the domain of the resulting function.

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justaguide | College Teacher | (Level 2) Distinguished Educator

Posted May 8, 2012 at 4:35 PM (Answer #1)

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The function f(x) = x +1 and g(x) = x − 2

f*g(x) = (x + 1)(x - 2) = x^2 - x - 2

The domain of f*g(x) is the set of real numbers R.

The function f*g(x) = x^2 - x - 2 and the domain is R.

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