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anonymous

  • one year ago

Let f(x)=-5x+8. For what value of x does function f have the given value? f(x)=-7

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  1. anonymous
    • one year ago
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    So if f(x)=-7, what is the equation -5x+8 equal to?

  2. anonymous
    • one year ago
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    -7?

  3. anonymous
    • one year ago
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    correct. So we have the equation -7=-5x+8. So now what do you think we should do? Maybe put like terms together?

  4. anonymous
    • one year ago
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    yes

  5. anonymous
    • one year ago
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    so would it look something like this 0=-5x+15?

  6. anonymous
    • one year ago
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    sorry meant -15=-5x, then divide by -5 to get a positive 3

  7. anonymous
    • one year ago
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    Yes that is absolutely correct. Sorry for the delayed reply.

  8. anonymous
    • one year ago
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    it's alright, thanks for your help :)

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