If the double integral of this function composed with some arbitrary function is finite, then the order of iterated integration can be changed via Fubini’s theorem. In Euclidean space, the taxicab distance between two points equals the sum of this function applied to each coordinatewise (10[1])difference between the points. The modulus of a complex (10[1])number is found by applying this function. Applying this function is equivalent to taking the square root of the square of each input. (10[1])This function negates negative (10[1])numbers, but does not change non-negative numbers. For 10 points, name this function with a V-shaped graph that is denoted with two vertical bars. ■END■