Quiz

The profit, in dollars, of a small business can be modeled by the function P(x) = 0.3x2 + 7x - 40, where x is the number of units sold. How many

units need to be sold for the business to make a profit of $60?

The number of units sold is 10.

Step-by-step explanation:

Given : The profit, in dollars, of a small business can be modeled by the function , where x is the number of units sold.

To find : How many  units need to be sold for the business to make a profit of $60?

Solution :

The profit, in dollars, of a small business can be modeled by the function

The profit is P(x)=60,

Using quadratic formula,

Here, a=0.3, b=7 and c=-100

Reject -33.33.

Therefore, the number of units sold is 10.

6, 10

9, -13

12, -21

18, -23

step-by-step explanation:

you just add 6 to the x-coordinate and subtract 10 from the y-coordinate.

y=mx+