sat suite question viewer
Advanced Math
/ Nonlinear functions
Difficulty: Easy
The function is defined by . For what value of does ?
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Explanation
Choice C is correct. It's given that . Substituting for in this equation yields . Dividing both sides of this equation by yields . This can be rewritten as . Squaring both sides of this equation yields . Therefore, the value of for which is .
Choice A is incorrect. If , , not .
Choice B is incorrect. If , , not .
Choice D is incorrect. If , , which is equivalent to , not .