Which of the following equations do not represent a proportional relationship? Group of answer choices

y = 4/3x

y = 2x - 1

y = x

y = 1.4x

y = x

Step-by-step explanation:  Since this does not correspond to a size or amount to a number, then this is not proportional

a) 7x=7

step-by-step explanation:

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

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