What is the equation of the line graphed in the xyxyx, y-plane that passes through the point (-4,-5)(−4,−5)left parenthesis, minus, 4, comma, minus, 5, right parenthesis and is parallel to the line whose equation is 3x-4y=-83x−4y=−83, x, minus, 4, y, equals, minus, 8?

0.02040816326

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!