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sylinan

  • 3 years ago

If f(x) = −4x − 2, find f(−3) 10 −14 12 −10

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  1. JayDS
    • 3 years ago
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    f(x) = -4x -2 f(-3) = -4(-3) -2 = .................. see we have just simply substituted x=-3 into the equation given?

  2. sylinan
    • 3 years ago
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    yes(:

  3. JayDS
    • 3 years ago
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    ok, now tell me what the answer is if you have figured it out?

  4. sylinan
    • 3 years ago
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    _228 okay thats wrong ):

  5. sylinan
    • 3 years ago
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    -228

  6. JayDS
    • 3 years ago
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    ok this is our equation f(x) = -4x -2 it's the same as saying y = -4x -2 and we want to substitute x=-3 into the equation, so we simply replace the x in the above equation by -3 y=-4(-3) -2 y= ? (you can do this)

  7. sylinan
    • 3 years ago
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    i dont know what to do ):

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