Answer
$N=4$, $A=7$, $b=1.5$
Technology formula:$\qquad \text{ 4/(1+7*1.5^(-x)) }$
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Work Step by Step
Comparing to
$\displaystyle \quad f(x)=\frac{N}{1+Ab^{-x}}$
we need $1+$ in the denominator, so we divide both the numerator and denominator with $0.5$.
$h(x)=\displaystyle \frac{4}{1+7(1.5^{-x})}$
We get:
$N=4$, $A=7$, $b=1.5$
So, the technology formula is:
$\text{ 4/(1+7*1.5^(-x)) }$
(We used the grapher at www.wanermath.com, as suggested by the book.)
