Ask Question
18 May, 03:11

If f (x) = √x-7 and g (x) = - 3x-6, which statement is true?

-3 is the domain of f°g

-3 is not the domain of f°g

+4
Answers (1)
  1. 18 May, 03:21
    0
    (f∘g) (x) = √ ((-3x - 6) - 7) = √ (-3x - 13)

    We require

    ... - 3x - 13 ≥ 0

    ... - 13 ≥ 3x

    ... x ≤ - 13/3

    ... x ≤ - 4 1/3

    -3 is NOT in the domain of f∘g.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “If f (x) = √x-7 and g (x) = - 3x-6, which statement is true? -3 is the domain of f°g -3 is not the domain of f°g ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers