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Calculus

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Find each function, find f(a+h) and f(a+h)-f(a)

a) f(x)=5x-2

  • Calculus - ,

    5(a+h) -2 = 5a + 5h - 2
    5(a) -2 = 5 a - 2
    --------------------------subtract
    5 h is the answer

    now if we were doing calculus we would divide that by h and then let h go to 0
    5 h/h = 5
    and we call that the "derivative" of f(x)=5x-2

  • Calculus - ,

    May I know where you got 5a + 5h - 2

  • Calculus - ,

    f(a+h) = 5(a+h) - 2
    from your function definition

    5(a+h) -2 = 5 a + 5 h - 2

  • Calculus - ,

    Thank you~

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