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If (y=25+kx) is linear growth and (k=0), what is correct about the statement?

Answer and explanation

Correct answer: It is not growth; it is a constant function

When k=0, y=25+0x=25. The value of y does not change as x changes, so this is a constant function, not growth. Linear growth requires k>0, whereas k<0 represents linear decay. Exam tip: In y=a+kx, k is the slope or rate of change; its sign indicates growth or decay.

Related tags

Linear FunctionsRate Of ChangeSlopeConstant FunctionLinear GrowthLinear DecayLinear Growth And DecayIntroduction To Polynomials

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