Question

The equation y=x^2+41 models the earrings of a company, where y is the revenue in millions of dollars and x is the number of years since the company was founded. After how many years is the company's earnings $77million?

Answer 1

Therefore the company's earning is 77 millions after 6 years.

Explanation:

Given that,

The equation models the earning of a company is

y=x²+41

y= is revenue in millions

x= number of years since the company was founded.

The earning of the company is $77 millions.

To find the years, we need to put y=77 in the given equation.

∴77=x²+41

⇒x²=77-41

⇒x²=36

⇒x=6

Therefore the company's earning is 77 millions after 6 years.