The answer to 3*(9-5) /6*2

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

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8