Find an exponential finction having the given values f(0)=5, f(3)=40 Thanks!
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$\displaystyle y = a \cdot b^x$ $\displaystyle 5 = a \cdot b^0$ $\displaystyle a = 5$ $\displaystyle y = 5 \cdot b^x$ $\displaystyle 40 = 5 \cdot b^3$ $\displaystyle 8 = b^3$ $\displaystyle b = 2$ $\displaystyle y = 5 \cdot 2^x$
thank you!
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