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katlin95

Which of the following functions decreases, going downwards from left to right on a graph? A. y = 4x B. y = 5x C. y = (1/2)^x D. y = 3(2)^x

  • one year ago
  • one year ago

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  1. katlin95
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    @ninjawolfjj

    • one year ago
  2. ninjawolfjj
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    I feel like you are missing a negative sign...

    • one year ago
  3. ninjawolfjj
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    Well...

    • one year ago
  4. katlin95
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    hmm let me check

    • one year ago
  5. katlin95
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    no not missing anything:)

    • one year ago
  6. ninjawolfjj
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    ok

    • one year ago
  7. katlin95
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    would my answer be C?

    • one year ago
  8. ninjawolfjj
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    I believe it is probably C.

    • one year ago
  9. mathstudent55
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    C is correct. Since you are raising a fraction between 0 and 1 to a power, the higher the power, the smaller the number will be. For example: For x = 1, 2, 3 (1/2)^1 = 1/2 (1/2)^2 = 1/4 (1/2)^3 = 1/8 As you can see, as x increased, from 1 to 2 to 3, f(x) decreased from 1/2 to 1/4 to 1/8

    • one year ago
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