Chapter 1.2, Problem 53E

To determine

The kind of model that best fit the data in the table showing the demand for gasoline in the Unites States in terms of price per gallon.

Price p $\left(\$/\text{gallon}\right)$	$1.50$	$2.50$	$3$	$3.50$
Demand q (gallon sold/ person / day)	$1.7$	$1.65$	$1.55$	$1.4$

Out of the following options:

$q=A{b}^p\left(b>1\right)$

$q=A{b}^p\left(b<1\right)$

$q=a{p}^2\text{+}bp+c\left(a>0\right)$

$q=a{p}^2\text{+}bp+c\left(a<0\right)$

Where (A, a, b, and c are constants).