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andreadesirepen

  • 3 years ago

Does anyone understand this? If f(x) = 4x + 1 and g(x) = x2 – 2x + 1, what is f(g(x)) ? 4x2 – 8x + 5 4x2 + 2x + 2 x2 + 2x + 2 x2 – 2x + 2

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  1. math456
    • 3 years ago
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    f(g(x)) meanign plug the value of g(x) in f(x)

  2. math456
    • 3 years ago
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    f(g(x))=4(x2-2x+1)+1 and solve!

  3. andreadesirepen
    • 3 years ago
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    would that be, 8x-8x+4+1

  4. andreadesirepen
    • 3 years ago
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    ? sorry i dont get it

  5. math456
    • 3 years ago
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    4x^2-8x+5

  6. math456
    • 3 years ago
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    u just plug the g(x) value in f(x) fiction. Meaning wherever you see x in f(x) plug the value of g(x)

  7. andreadesirepen
    • 3 years ago
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    why is it to the 2nd power?

  8. math456
    • 3 years ago
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    what do u mean by 2nd power?

  9. andreadesirepen
    • 3 years ago
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    the 4x^2

  10. math456
    • 3 years ago
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    |dw:1348181987276:dw|

  11. math456
    • 3 years ago
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    whereever you see x in the f(x) function you need to plug the g(x) value which is x^2-2x+1!

  12. andreadesirepen
    • 3 years ago
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    ohhhhhhhhhhh, thanks!!! I just find it hard to understand when its typed

  13. math456
    • 3 years ago
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    alright, you r welcome ^^

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