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A student says that \(7-\sqrt{5}x\) is not a linear polynomial because the coefficient of \(x\) is irrational. Which option correctly evaluates this statement?

Answer and explanation

Correct answer: The student is wrong; the highest power of \(x\) is 1, and an irrational number can be a real coefficient.

The student is wrong. In \(7-\sqrt{5}x\), the highest exponent of \(x\) is 1, so it is linear. \(\sqrt{5}\) is a real coefficient; in exams, determine degree from the variable’s exponent.

Related tags

Linear PolynomialsPolynomial DegreeReal CoefficientsIrrational NumbersClass 9 MathematicsIntroduction To PolynomialsMathematicsClass 9 Mcq

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