college algebra

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Identify where f increases and where f decreases. f(x)=5x+3

I think it's (3,5) increases and (3,-2) decreases?

  • college algebra -

    F increases when x is positive and F
    decreases when x goes negative.

    F(x) = 3x + 3.
    F(2) = 3*2 + 3 = 9. (3,9).
    F(-2)=3*(-2) + 3 = -6 + 3=-3. (-2,-3).

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