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If (p(x)=mx+n) and (p(-5)=p(3)), when can (p(x)) be linear?

Answer and explanation

Correct answer: Never

Given \(p(-5)=p(3)\), we get \(-5m+n=3m+n\). Thus \(-8m=0\), so \(m=0\). Then \(p(x)=n\), which is a constant polynomial, not a linear polynomial. Option A satisfies the given equality, but it makes the coefficient of \(x\) zero, so the degree is not 1. Exam tip: For \(mx+n\) to be linear, \(m\ne0\) is necessary.

Related tags

PolynomialsLinear PolynomialsConstant PolynomialCoefficient ConditionAlgebraic ReasoningIntroduction To PolynomialsMathematicsClass 9 Mcq

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