The graphs \( y=2 x^{3}-4 x+2 \) and \( y=x^{3}+2 x-1 \) intersect at exactly 3 distinct points....

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The graphs \( y=2 x^{3}-4 x+2 \) and \( y=x^{3}+2 x-1 \) intersect at exactly 3 distinct points. The slope of the line passing through two of these points is
(a) equal to 4
(b) equal to 6
(c) equal to 8
(d) not unique
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