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anonymous

  • one year ago

If f(x) is a continuous function defined for all real numbers, f(–2) = 10, f(–7) = –5, and f(x) = 0 for one and only one value of x, then which of the following could be that x value

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  1. anonymous
    • one year ago
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    Let me the multiple choices?

  2. anonymous
    • one year ago
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    a)-3 b)-8 c)0 d)2

  3. anonymous
    • one year ago
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    If touches f(x)=0 once that mean it touches y=0 once |dw:1439583539119:dw| What do you think it is now?

  4. anonymous
    • one year ago
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    0?

  5. anonymous
    • one year ago
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    x value is the horizontal coordinate. They are looking which x value can be f(x)=0

  6. anonymous
    • one year ago
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    If they say it can only touch f(x)=0 or (y=0) once, that means it will always increase since the graph from f(-7) to f(-2) is increasing.

  7. anonymous
    • one year ago
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    well I figured it might be -3 because -2=10 and -7=-5 so it would have to be between them right?

  8. anonymous
    • one year ago
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    and it will always decrease from f(-7) to f(-10) and so on.

  9. anonymous
    • one year ago
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    Yes, you are correct, it is -3.

  10. anonymous
    • one year ago
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    thank you

  11. anonymous
    • one year ago
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    No problem!

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