What is the sum of the roots of the polynomial shown below? fx) = 3x^3+12x^2+3x– 18

3x^3+12x^2+3x-18

Step-by-step explanation:

i would need to see the dot plot : )

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