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gfoste00

  • 4 years ago

function f(x) is reflected in x axis then shifted up 4 units, and the graph of g(x) = 4-x^2 is obtained. what is f(x)?

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  1. amistre64
    • 4 years ago
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    in order to shift a graph "up"; we have to add a number to it; to determine the original place for it; subtract that number back out.

  2. amistre64
    • 4 years ago
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    4-x^2 -4 ------- -x^2 = f(x)

  3. amistre64
    • 4 years ago
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    ack .. for got to reflect it :)

  4. amistre64
    • 4 years ago
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    change the sign and you got it

  5. 123F
    • 4 years ago
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    look 1 up above plz

  6. gfoste00
    • 4 years ago
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    so wait what do i get for answer?

  7. gfoste00
    • 4 years ago
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    what is ack?

  8. amistre64
    • 4 years ago
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    "ack" just means that I left something out that I forgot to include

  9. 123F
    • 4 years ago
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    amistre64 look 1 up above plz

  10. amistre64
    • 4 years ago
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    f(x) reflects over the x axis means it turns to -f(x) add 4 means we get: -f(x) + 4 -f(x) + 4 = 4-x^2 ; we can solve for f(x) now, subtract 4 -f(x) = -x^2 ; multiply by -1 f(x) = x^2

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