Question

y = 0.038 x^2 - 2.6 x + 62.51

models the number of deaths per year per thousand people, y, for people who are x years old, 40 <= x <= 60. Approximately how many people per thousand who are 56 years old die each year? For the purposes of this problem, please round your answer to a whole number.

Answer 1

Put x = 56 in y = 0.038 x^2 - 2.6 x + 62.51and calculate y.

Answer 2

I got that, but then I get stuck solving for X with the X and X^2

Answer 3

@aum

Answer 4

wait im putting 56 in for the x's?

Answer 5

and solving the y?

Answer 6

Not sure what you mean. You don't have to solve for x. Just substitute x = 56 and calculate y.

Answer 7

Got it! Thanks, had a brain fart :P

Answer 8

@aum

Answer 9

yw.