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over which interval does the growth rate of the exponential function ex…

Question

over which interval does the growth rate of the exponential function exceed the growth rate of the linear function? \\(0\leq x < 1\\) \\(1\leq x < 2\\) \\(x > 2\\) \\(x < 1\\)

Explanation:

Response

To determine when the growth rate of an exponential function exceeds that of a linear function, we analyze the properties of exponential (\(y = a^x, a>1\)) and linear (\(y = mx + b, m>0\)) functions:

Key Concept:
  • Linear growth has a constant rate (\(m\), the slope).
  • Exponential growth has a increasing rate (its derivative, \(y' = \ln(a) \cdot a^x\), grows with \(x\) for \(a>1\)).
Interval Analysis:
  • For \(x < 1\) or \(0 \leq x < 1\) or \(1 \leq x < 2\): The exponential function’s rate (derivative) is still relatively small and may not exceed the linear rate.
  • For \(x > 2\): As \(x\) becomes sufficiently large, the exponential function’s growth rate (which accelerates) will surpass the linear function’s constant growth rate.

Answer:

\(x > 2\)