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anonymous

  • one year ago

Consider the function f(x) = 8 − 3x2. Find the value of f(x) when x = 3 and select the correct answer below. -19 -10 26 35

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  1. anonymous
    • one year ago
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    the answer is 30

  2. anonymous
    • one year ago
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    but there is no 30 in the options

  3. anonymous
    • one year ago
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    okay let me try it again

  4. anonymous
    • one year ago
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    ok thank you

  5. anonymous
    • one year ago
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    ok thank you

  6. anonymous
    • one year ago
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    its -10

  7. anonymous
    • one year ago
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    8-3(3)x2 8-9x2 8-18 -10

  8. phi
    • one year ago
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    is it \[ f(x) = 8 − 3x^2 \]? if so , the \(x^2\) means x times itself. in other words, you can write it this way \[ f(x) = 8 − 3\cdot x \cdot x \] to find f(3) you erase the x wherever you see it, and replace it with 3 then simplify (and remember "order of operations"... multiply before add)

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spraguer (Moderator)
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