The table below shows the profit, $\displaystyle {P}{\left({x}\right)}$, in dollars, from selling $\displaystyle {x}$ items.

$\displaystyle {x}$	1	2	3	6	1	14
$\displaystyle {P}{\left({x}\right)}$	109.4	129	138.8	109.4	109.4	-400.2

Using your calculator to do a quadratic regression, express the profit as a function of the number of items sold.
$\displaystyle {P}{\left({x}\right)}=$Preview Question 6 Part 1 of 5  
Round all numbers to 1 decimal place.

Using your quadratic regression, estimate the profit from selling 7 items? Select an answer items dollars
Round to 2 decimal places.

Using your quadratic regression, estimate the number of items that need to be sold to make a profit of $-302.2 ? Select an answer items dollars