College Algebra / Alg 354 · Atom · ~20 seconds
End Behavior from the Leading Term
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A polynomial's end behavior matches the power function in its leading term: even degree matches the arms, odd degree opposes them, and the coefficient's sign points them.
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−2x⁴ + 7x: the leading −2x⁴ rules far out, so both arms fall — at ±10, the −20,000 drowns the 70.
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