Inflection at f'(x) = 0 <span> x^1/2 / (1 + x + x^3) = 0 </span>
<span>The x coordinate is x = 0 </span> <span> or "C" from your choices there. </span>
<span>The simplest way is to notice that this happens when x = 0. The reason is you got: </span> <span> x^1/2 / (some expression) </span> <span> at x = 0 the numerator is 0 so unless the denominator is also 0 the result is 0. </span> <span> The denominator for x = 0 is 1 so you get </span> <span> 0/1 = 0.
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The answer is A because The Commutative Property of Addition states that no matter how the problem is structured you would still get the same answer and answer A expresses that