CPM Homework Help : INT1 Problem 8-112

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8-112.

Each table below represents an exponential function in $f(x) = ab^x$ form. Copy and complete each table on your paper and then write an equation for the function.

$x$
$f(x)$
$-1$
$3$
$0$
$1$
$75$
$2$
$3$
Hint (a):
What is the multiplier?
Answer (a):
$y = 15 · 5^{x}$
$x$
$f(x)$
$-1$
$3$
$0$
$\mathbf{15}$
$1$
$75$
$2$
$\mathbf{375}$
$3$
$\mathbf{1875}$

$x$
$f(x)$
$0$
$1$
$2$
$96.64$
$3$
$77.312$
$4$
Partial Answer (b):
$x$
$f(x)$
$0$
$\mathbf{151}$
$1$
$\mathbf{120.8}$
$2$
$96.64$
$3$
$77.312$
$4$
$\mathbf{\approx 61.85}$

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