Which of the following relations is a function? {(3,-3), (3, -6), (3,-4)}
{(10,-9), (7, -1). (10.-9)}
O{(-6, -6), (-1, -1), (-6, -8)}
{(1, -6), (-2,-2), (1, -1)}

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Step-by-step explanation:

the answer is 175.4379

step-by-step explanation:

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.