Which relation is a function? A. {(6,3), (8,3), (9, 3), (2, 3)}
B.
{(2, 2), (6, 1), (-4, 8), (6,5)}
C.
{(8,3), (2, 5), (4, 6), (2, 0)}
D.
{(3, 8), (1, 5), (6, 8), (3, 8)}

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!

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8

you est gay to much man grow some bollas also man kcuf off you little harry p u s s y. stupid