Which of the following functions represent exponential growth? Which of the following functions represent exponential decay?

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  1. a, b, c - represent growth

  2. b, c, d - represent decay

Step-by-step explanation:

If increasing x results in a larger value, the function represents growth. If it results in a smaller value, the function represents decay.

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To answer these questions, you can look at the base and the exponent. When we say "exponent" here, we mean the coefficient of the exponent variable. There are four possibilities:

  growth:

  decay:

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Growth questions:

  1.77^x -- growth

  1.5^(x/2) -- growth

  0.5^(-x) -- growth (= 2^x)

  e^(-t) -- decay (e ≈ 2.718)

Decay questions:

  1.7^x -- growth

  1.7^(-2x) -- decay

  (1/3)^x -- decay (= 3^(-x))

  2^(-x) -- decay

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step-by-step explanation: