Chapter 10.1, Problem 67E

(a)

To determine

To calculate: The model of a form $a_n=kn+b$ using the regression feature of a graphing calculator. When in the united states, the number of Dick’s Sporting Goods stores $a_n$ from the year $2010$ to year $2014$ are given in the table below, $n$ is the number of year here $n=0$ corresponds to $2010$.

$n$	$0$	$1$	$2$	$3$	$4$
$a_n$	$525$	$561$	$599$	$642$	$694$

(b)

To determine

To graph: The points and graph the model of the form $a_n=kn+b$. When in the united states, the number of Dick’s Sporting Goods stores $a_n$ from the year $2010$ to year $2014$ are given in the table below, $n$ is the number of year here $n=0$ corresponds to $2010$.

$n$	$0$	$1$	$2$	$3$	$4$
$a_n$	$525$	$561$	$599$	$642$	$694$

(c)

To determine

The number of Dick’s Sporting Goods stores in the year $2018$ using the model $a_n=kn+b$. When the average concentration levels $a_n$ in parts per million of carbon dioxide gas $\left({\text{Co}}_{\text{2}}\right)$ in atmosphere of Earth from the year $2010$ to year $2014$ are given in the table below,

$n$	$0$	$1$	$2$	$3$	$4$
$a_n$	$525$	$561$	$599$	$642$	$694$