If (x -1)2 + (y -2)2 + (z -3)2 = 0 then the value of x + y + z is
(A) 0 (B) 1
(C) 6 (D) 5

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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

step-by-step explanation:

yes it represnts a functio, their are not 2 of the same numbers on the both sides