Question

The average annual income, I, in dollars, of a lawyer with an age of x years is modeled with the following function:
I=-425x^2+45,000x-650,000
According to this model, what is the predicted annual income of 40-year old lawyers?round to the nearest whole dollar

Answer 1

well add that and combine like terms and subtract and use binary numbers and check on the calculator to see if you are correct

Answer 2

what do i add into the equation?

Answer 3

well you add exponets and do simple interest

Answer 4

Just plug in 40 for x

Answer 5

so 1120000?

Answer 6

That's not what I got,
I got 470,000
-425(1600)+45,000(40)-650,000
-680,000+1,800,000-650,000
1,800,000-1,330,000
470,000

Answer 7

k i will try it..

Answer 8

1600=40^2

Answer 9

490000 :(