NOTE: The graph is a STRAIGHT LINE, which has a point where the function changes sign, that point is the vertex of the function V(x, y) = (1, -1) for values

Definition: An absolute value function is a branch function of the type y = a|x-h| + k where: h = horizontal displacement. k = vertical displacement.

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The absolute value is a function, denoted as |, which is defined over all real numbers and which returns, for each real number,

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