CPM Homework Help : CALC Problem 5-82

FUNCTIONS FROM TABLES, Part One
Find the function $f(x)$ that fits the table shown at right. What kind of function is it?

Hint:

Compare the finite differences (the between consecutive values of $f(x))$ . Are they increasing, decreasing or constant?
What type of graph fits their pattern?

$x$	$f(x)$
$0$	$1$
$1$	$5$
$2$	$9$
$3$	$13$
. . .	. . .