If r(x) = 3x - 1 and s(x) = 2x + 1, which expression is equivalent to 402
-
3(6)-1
2(6)+1
(6)
2(6) +
36-1
26+1
(6)-1
(6) +1

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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