CPM Homework Help : INT1 Problem 8-25

Each table below represents an exponential function of the form $y = ab^{x}$ . Copy and complete each table on your paper and write the corresponding equation.

$x$
$y$
$0$
$1.2$
$1$
$3.96$
$2$
$13.068$
$3$
$4$

$x$	$y$
$0$	$1.2$
$1$	$3.96$
$2$	$13.068$
$3$
$4$

Hint (a):

What is the multiplier?

Answer (a):

$x$	$y$
$0$	$1.2$
$1$	$3.96$
$2$	$13.068$
$3$	$\mathbf{43.1244}$
$4$	$\mathbf{ \approx 142.31}$

$y = 1.2(3.3)^x$

$x$
$y$
$0$
$5$
$1$
$2$
$180$
$3$
$4$

$x$	$y$
$0$	$5$
$1$
$2$	$180$
$3$
$4$

Hint (b):

$x$	$y$
$0$	$5$
$1$	$\mathbf{30}$
$2$	$180$
$3$	$\mathbf{1080}$
$4$	$\mathbf{6480}$

Answer (b):

$y = 5(6)^x$