Y+8=0(x-6)
isolate y
slope intercept (y=mx+b)

y=0

Step-by-step explanation:

Y+8=0(x-6) <-- point slope to slope int.

slope=0

The point is (6,-8)

y=0

answer: i don't understand it

step-by-step explanation: sorry

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!