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Which option has equal decrease of (4) per step?

Answer and explanation

Correct answer: \(y=10-4x\)

In \(y=10-4x\), the coefficient of \(x\) is \(-4\). Therefore, when \(x\) increases by 1, \(y\) decreases by 4. In \(y=4x-10\), the coefficient is \(+4\), so it represents an increase of 4, not a decrease. Exam tip: In a linear expression \(y=a+bx\), the coefficient \(b\) gives the change per step.

Related tags

Linear DecayLinear EquationsCoefficientRate Of ChangePolynomialsLinear Growth And DecayIntroduction To PolynomialsMathematics

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