Answer: C - The value of f(4) is 3. Evaluate expression (x2 − 1)/(2x − 3) for x = 4.(x2 − 1)/(2x − 3) = (42 − 1)/(2 × 4 − 3) = (16 − 1)/(8 − 3) = 15/5 = 3

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SAT Prep

Category - Math

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What is the value of f(4) if f(x) = (x² − 1)/(2x − 3)?

Explanation

Answer: C - The value of f(4) is 3. Evaluate expression (x² − 1)/(2x − 3) for x = 4.
(x² − 1)/(2x − 3) = (4² − 1)/(2 × 4 − 3) = (16 − 1)/(8 − 3) = 15/5 = 3

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