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CAT 1994 — QA Question 38

Composite FunctionsEasy
Passage / Data

Answer the next 4 questions based on the information given below:

If f (x) = 2x + 3 and g(x) =  x-32, then

For what value of x; f (x) = g(x −3)?

Answer & solution

  • A

    -3

  • B

    14

  • -4

  • D

    None of these

Solution

If 2x + 3 = [(x-3)-3]2, then x = -4.

CAT 1994 QA Q38: For what value of x; f (x) = g(x −3)? — Solution | TheCATExam