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anonymous

  • one year ago

If f(x) = 5x − 1 and g(x) = 2x2 + 1, what is the value of (f × g)(-3)?

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  1. SolomonZelman
    • one year ago
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    your g(x)=2x²+1, correct?

  2. anonymous
    • one year ago
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    yes?

  3. SolomonZelman
    • one year ago
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    So, when you say `(f × g)` all that means is that you multiply whatever `f(x)` is equal to, TIMES whatever `g(x)` is equal to. In this case `f(x)=5x-1` and `g(x)=2x²+1` So in this case, `(f×g)` means `(5x-1)•(2x²+1)`

  4. SolomonZelman
    • one year ago
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    This will give you a new function (f×g)(x)= (whatever you got from this product of the 2 functions) But it is not done yet

  5. SolomonZelman
    • one year ago
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    Then, after you get the correct product of the two functions you need to plug in -3 instead of x.

  6. SolomonZelman
    • one year ago
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    and after this you are done

  7. SolomonZelman
    • one year ago
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    If you got any questions or want to check answer, you are always welcome to ask/check.

  8. anonymous
    • one year ago
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    Thank you very much! I kept messing up with one of the functions :D

  9. SolomonZelman
    • one year ago
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    It's alright.... I would prefer you to show the work in here, so if anything, then I c an correct you. (But it is just a matter of preference , not requirement)

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