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^2 () = 5 −x + The function f is defined by f x . 1/4 11/4 What is the value of f ? 1/4
Correct answer: 4 (parsed from the explanation — this source omits an answer key for this item)
Explanation
11 The correct answer is 4. It’s given that the function f is defined by =5 1 - 2 + 11 1 f`xj b 4 xl 4. Substituting 4 for x in this equation yields 1 =5 1 - 1 2 + 11 1 =5 0 2+ 11 1 = 11 fb 4 l b 4 4 l 4, which is equivalent f` 4 j ^ h 4, or fb 4 l 4. Therefore, 1 11 the value of fb 4 l is 4. Note that 11/4 or 2.75 are examples of ways to enter a correct answer.
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