Question 940092: for the indicated functions f and g, find the
functions f + g, f - g, fg, and f|g, and find their domains.
f(x)= 4x; g(x)= x + 1
Answer by ewatrrr(24785)   (Show Source):
You can put this solution on YOUR website! Note: domain of a Polynomial function is ALL real numbers.
Ex: ax^3 + bx^2 + cx + d 0r ax^2 + b x + c, 0r ax + b etc
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f(x)= 4x; g(x)= x + 1
f + g, 5x + 1 (Polynomial), domain is ALL real numbers (−∞, ∞)
f - g, 3x+ 1 (Polynomial), domain is ALL real numbers (−∞, ∞)
fg, 4x^2 + 4x (Polynomial), domain is ALL real numbers (−∞, ∞)
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f/g, 4x/(x+1), domain is ALL real numbers EXCEPT x = -1 , (−∞, -1)∪ (−1, ∞)
CANNOT Divide by Zero
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