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anonymous

  • 5 years ago

If you can help that would be great! The Function is f (x) = sqrt( 8x + 8 ) Then (f) is in the domain of (x) provided x>or equal to ??????????

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  1. amistre64
    • 5 years ago
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    can you rewrite the problem? the way it is in the ....book Im assuming....

  2. amistre64
    • 5 years ago
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    if anything, I would assume that it is asking for the domain of f(x).. but I am unclear with what you write here.

  3. amistre64
    • 5 years ago
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    if so, the sqrt function can only have values equal to or greater then zero in it, any "x" that you use will have to be limited to values that make the expression equatl to or greater than 0.

  4. anonymous
    • 5 years ago
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    yes its the domain of f(x) sorry

  5. amistre64
    • 5 years ago
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    ..then we can figure out the bad "x" values by doing this: 8x +8 >=0 8x >= -8 x>= -8/8 x>= -1 the domain for f(x) is then; all values of x that are greater than or equal to -1. or written in notation: [-1,inf)

  6. amistre64
    • 5 years ago
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    or rather, the "good" x values....

  7. anonymous
    • 5 years ago
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    ok thanks that makes sense!

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