The average income, I, in dollars, of a lawyer with an age of x years is modeled with the following function: I=-425x^2+45,500x-650,000. What is the youngest age for which the average income of a lawyer is $450,000? Round to the nearest year.

Question

anonymous · Answer

Using the quadratic formula...18.7 years or 19 years when rounded.

anonymous · Answer

thank you so much. i entered 19 and it told me that the answer was 37 :(

anonymous · Answer

The other choice I had was -126...didn't think that was right.