Please help!!

A company's yearly profits from 1996 to 2006 can be modeled by the function y=x^2-10x+125 where y is the profit (in thousands of dollars) and x is the number of years since 1996.
a. In what year did the company experience its lowest yearly profit?
b. What was the lowest yearly profit?

Question

Please help!!

A company's yearly profits from 1996 to 2006 can be modeled by the function y=x^2-10x+125 where y is the profit (in thousands of dollars) and x is the number of years since 1996. 
a. In what year did the company experience its lowest yearly profit? 
b. What was the lowest yearly profit?

anonymous · Answer

skip the verbiage and find the vertex using 
$$x=-\frac{b}{2a}=-\frac{-10}{2\times 1}=5$$

anonymous · Answer

so year 5 and then compute with x = 5 to answer the second question

anonymous · Answer

100,000?

anonymous · Answer

Year 5 would represent 2001 and when you plug 5 back in, the profit is 5^2-10(5)+125=100 which represents $100,000