ACT 2011 April(67F) Math Question 5 Explanation - ACT Helper

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2011 April(67F) Math Question 5
Number Types & Properties
- Largest or Smallest Value
Choice A
To maximize the value of x, you must minimize the value of
$y^{2}$ $y^{2} = 0, x^{2} = 256$ $x = \pm \sqrt{256} = \pm 16$
The positive 16 is the answer.
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