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Function h is defined like this: h(x) = 5x² - 15x + 3 At h(1), h is : a) increasing b) decreasing c) flat d) not differentiable?

Science & Mathematics by Anonymous 2018-07-11 21:34:17

Social Science

Function h is defined like this: h(x) = 5x² - 15x + 3 At h(1), h is : a) increasing b) decreasing c) flat d) not differentiable?

5 answers

  • Anonymous

    h'(x) = 10x -15 h'(1) = -5 Answer b)

  • Anonymous

    h'(x) = 10x - 15. At x = 1, the function is decreasing.

  • Anonymous

    OBVIOUSLY B)

  • Anonymous

    This is a quadratic with a minimum at x = -b/2a. -(-15)/2(5) = 1.5 x = 1.5 The curve is decreasing before 1.5 and increasing after. At (1) it is decreasing! B

  • Anonymous

    h'(x)=10x-15 h'(1)=-5<0 --->decreasing

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