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Which of the following linear polynomials decreases in value as \(x\) increases?

Answer and explanation

Correct answer: \(-3x+7\)

In a linear polynomial \(ax+b\), the value decreases as \(x\) increases when the coefficient \(a\) is negative. In \(-3x+7\), the coefficient of \(x\) is \(-3\). Exam tip: check the sign of the \(x\)-coefficient first.

Related tags

PolynomialsLinear PolynomialLinear DecayCoefficientClass 9 MathematicsLinear Growth And DecayIntroduction To PolynomialsMathematics

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