Modded SAT Question Bank
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Test
Math
Domain
Algebra
Skill
Linear functions
Difficulty
Easy
ID: 06fc1726
Modded SAT Question Bank by Abdullah Mallik

If f is the function defined by f of x equals, the fraction with numerator 2 x minus 1, and denominator 3, what is the value of f of 5 ?

  1. 4 thirds

  2. 7 thirds

  3. 3

  4. 9

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Correct Answer: C
Rationale

Choice C is correct. If f of x, equals the fraction with numerator 2 x minus 1, and denominator 3, then f of 5, equals the fraction with numerator 2 times 5, minus 1, and denominator 3, which equals the fraction with numerator 10 minus 1, and denominator 3, which equals the fraction 9 over 3, which equals 3.

Choice A is incorrect and may result from not multiplying x by 2 in the numerator. Choice B is incorrect and may result from dividing 2x by 3 and then subtracting 1. Choice D is incorrect and may result from evaluating only the numerator 2x – 1.

Question Difficulty: Easy
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