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anonymous

  • one year ago

help!!! need to pass

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  1. anonymous
    • one year ago
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  2. freckles
    • one year ago
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    let's look at choice A is -4 positive ? No we can skip it. let's go on to look at B and C... looking at them together because they both say something about the function being even. let's look at choice B and C? is f(x)=f(-x) (if so then f is even)?

  3. freckles
    • one year ago
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    \[f(x)=-4x^6+6x^2-52 \\ f(-x)=?\]

  4. freckles
    • one year ago
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    Haven't got to D yet we can skip it also because -4 again isn't positive. so anyways back to my question what is f(-x)

  5. freckles
    • one year ago
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    well you kind of already know by process of elimination that f is even therefore f(x)=f(-x) so you just have to determine if both ends go in same direction or opposite... let's think about this what does f(x)=f(-x) mean... well this means f(10)=f(-10) f(500)=f(-500) and so on... what can you say about the ends of the graph? same direction or opposite direction?

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