Question

Please help me.

Suppose the linear regression line y = 3.009x – 77.131 predicts a pizza parlor's profits based on the number of pizzas sold. If x represents the number of pizzas sold, and y represents the pizza parlor's profits in dollars, about how much can the pizza parlor expect in profits if it sells 275 pizzas?

Answer 1

$750.

Explanation:

Let x represent the number of pizzas sold, and y represent the pizza parlor's profits in dollars.

We have been given the linear regression line
`y=3.009x-77.131`, which predicts a pizza parlor's profits based on the number of pizzas sold.

To find the profit of pizza parlor when it sells 275 pizzas, we will substitute x=275 in our given equation.

`y=3.009*275-77.131`

`y=827.475-77.131`

`y=750.344\approx 750`

Therefore, the pizza parlor will make a profit of $750, if it sells 275 pizzas.