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katlin95

  • 3 years ago

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

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  1. katlin95
    • 3 years ago
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    @ninjawolfjj

  2. ninjawolfjj
    • 3 years ago
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    I feel like you are missing a negative sign...

  3. ninjawolfjj
    • 3 years ago
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    Well...

  4. katlin95
    • 3 years ago
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    hmm let me check

  5. katlin95
    • 3 years ago
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    no not missing anything:)

  6. ninjawolfjj
    • 3 years ago
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    ok

  7. katlin95
    • 3 years ago
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    would my answer be C?

  8. ninjawolfjj
    • 3 years ago
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    I believe it is probably C.

  9. mathstudent55
    • 3 years ago
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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

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