Part of this question was typeset outside the text flow — a fraction, subscript or similar — and PDF extraction re-inserted it in the wrong place. The wording is reliable; the symbols may be out of order. Check the original PDF →
5 The function f is defined by f x = 9 2x + 3. For ^ h ^ h = what value of x does f x 63? ^ h
Correct answer: A (parsed from the explanation — this source omits an answer key for this item)
Explanation
63 Choice A is correct. Substituting for f^xh in the given function yields 63=9 2 +3 7=2 +3 ^ x h. Dividing both sides of this equation by 9 yields x . 4=2 Subtracting 3 from both sides of this equation yields x. Dividing both sides = =63 of this equation by 2 yields 2 x. Therefore, f^xh when the value of x is 2. Choice B is incorrect and may result from conceptual or calculation errors. Choice C is incorrect and may result from conceptual or calculation errors. Choice D is incorrect and may result from conceptual or calculation errors.
Loading…
Searched on YouTube by topic, not by question text. Open this search on YouTube →
Extracted from PDF layout: equations, figures and tables do not survive intact. Use the original PDFs for anything the text renders poorly. SAT® is a trademark registered by the College Board, which is not affiliated with and does not endorse this project.