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teller

  • one year ago

Someone mind helping me ? Find the average rate of change of f(x)=-x^2+3x+3 from x=2 to x=6

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  1. inkyvoyd
    • one year ago
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    (f(6)-f(2))/(6-2)

  2. teller
    • one year ago
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    do I divide those?

  3. inkyvoyd
    • one year ago
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    f(6)=-15; f(2)=5

  4. inkyvoyd
    • one year ago
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    (-15-5)/(6-2)=(-20)/(4)=-5

  5. teller
    • one year ago
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    Wait what I' confused .So do I divide what you just posted?

  6. inkyvoyd
    • one year ago
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    no. I just worked out the problem. The answer is -5. you want to evaluate the expression \(\Huge \frac{f(b)-f(a)}{(b-a)}\) which in this case is \(\Huge \frac{f(6)-f(2)}{(6-2)}\)

  7. teller
    • one year ago
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    Oh okay thank you cause I spent almost ten minutes trying to solve this and the help video was just not working for me .It was confusing me more.

  8. inkyvoyd
    • one year ago
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    hahaha no problem :)

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