Question: X The range of the function f(x) = x-4 why this is true, you have to do two things: is (-0, -1) U (1,

X The range of the function f(x) = x-4 why this is

X The range of the function f(x) = x-4 why this is true, you have to do two things: is (-0, -1) U (1, 0). To explain (a) (2 marks) Show that if f(x) = y for some x, then either y > 1 or y < -1. (b) (2 marks) Show that if y 1, then the equation f(x) = y has a solution in x.

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