Question: If f(x) = x - 2x + 2 and g = {(0,1), (1,2), (2,3)}, then what is the range of f + g? f

If f(x) = x - 2x + 2 and g = {(0,1), (1,2), (2,3)}, then what is the range of f + g? f = {(a -2,5), (-7,3), (-5,5), (a + b,3)} is a 1-1 function, so b=? f = {(a, 2), (2,5), (-2,4), (a + a, 5)} is a 1-1 function, so a=?

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