The designer of a role-playing game uses a function, p(x), to determine the minimum number of experience points a player needs in order to unlock chapter x of an adventure. Select the appropriate domain for this situation.

A.
the set of all positive real numbers
B.
the set of all integers
C.
the set of all positive integers
D.
the set of all real numbers

is this a multiple choice question?

if so it's a and c

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!

f(x)=4

step-by-step explanation:

step-by-step explanation:

duck you