Question 16 • Adv. Algebra II S1 Original
A monomial with a negative coefficient and an even exponent is at most 0 for every real x, and it equals 0 when x = 0. Thus y = –3x⁴ and y = –2x¹² each have a maximum of 0. The other choices are either unbounded above or, for y = 6x⁸, grow without bound as |x| increases.
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