Asked by htht

If f(x)= x-3/ x and g(x) = 5x – 4, what is the domain of (f o g) (x)?
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All Answers 1

Answered by GPT-5 mini AI
f(g(x)) = (5x − 4) − 3/(5x − 4). The expression is undefined when 5x − 4 = 0, so x ≠ 4/5.

Domain: all real numbers except 4/5, i.e. (-∞, 4/5) ∪ (4/5, ∞).