Jim walks 2 miles in an hour. It takes him 3 hrs to walk 6 miles.
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The function represented by points A, B, and E is clearly modeled using an exponential function.
<h3>what is an exponential function?</h3>The function which is in format f(x) = where, a is constant and x is variable, the domain of this exponential function lies (-∞, ∞).
Here, the function has a rate of growth or decay for an uncertain period of time modeled as an exponential function..
A.The height of a plant each day that it grows.
⇒ This statement does not give the rate of growth, but we assume that it has a certain rate of growth, so it is an exponential modeled function.
B. The value of a savings bond increases 15% each year.
⇒ it is modeled as an exponential function.
C. Radioactive material decays by half every 2 hours.
⇒ it is also modeled as an exponential function.
D. Stephanie earns $14 an hour at her after-school job.
⇒ It is not an exponential function.
E. The population of a town grows 3% each year.
⇒ it is also modeled as an exponential function.
Thus, the function represented by points A, B, and E is clearly modeled using an exponential function.
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