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If (f(x)=a+12x) and (f(4)=95), what will (f(10)) be?

Answer and explanation

Correct answer: 167

Given f(x)=a+12x and f(4)=95, we get a+12(4)=95. Thus, a+48=95, so a=47. Now, f(10)=47+12(10)=47+120=167. Therefore, option C is correct. The value 155 can result from not determining the constant a correctly. Exam tip: first use the given function value to find the unknown constant, then substitute the required value of x.

Related tags

Linear FunctionPolynomialsFunction EvaluationUnknown ConstantLinear GrowthLinear Growth And DecayIntroduction To PolynomialsMathematics

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