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If the height of a plant is (H(d)=15+3d) cm, what type of change is it?

Answer and explanation

Correct answer: Linear growth

In H(d)=15+3d, the coefficient of d is +3. For every one-unit increase in d, the plant’s height increases by 3 cm, so it represents linear growth. Linear decay would have a negative coefficient of d, such as 15-3d. Exam tip: in y=a+bx, b>0 indicates growth and b<0 indicates decay.

Related tags

Linear GrowthLinear EquationPositive CoefficientRate Of ChangePolynomialsLinear Growth And DecayIntroduction To PolynomialsMathematics

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