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WITCHER [35]
3 years ago
8

Determining Exponential Growth and Decay in Exercise, use the given information to write an exponential equation for y. Does the

function represent exponential growth or exponential decay?
dy/dt = 5.2y, y = 18 when t = 0
Mathematics
1 answer:
frozen [14]3 years ago
6 0

Answer:

y = Ke^{5.2t}

Exponential growth

Step-by-step explanation:

We can solve this differential equation by the separation of variables method.

We have that:

\frac{dy}{dt} = 5.2y

So

\frac{dy}{y} = 5.2dt

Integrating both sides

\ln{y} = 5.2t + K

In which K is the value of y when t = 0.

We apply the exponential to both sides, so:

y = Ke^{5.2t}

This is our exponential equation. Since the power of e is a positive value, the function represents exponential growth.

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