Noah says that 9x – 2x + 4x is equivalent to 3x because the subtraction sign tells us to subtract everything that comes after 9x. Elena says that 9x – 2x + 4x is equivalent to 11x because the subtraction only applies to 2x. Who do you agree with?

let m = monomial

let t = trinomial

so, m times t = t.

monomial times a trinomial = another trinomial.

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb

ljn

step-by-step explanation: