Two students are using the distance formula to determine the distance between (9, 4) and (–3, 8) on a coordinate grid. their work is shown below.

The differences are 12 for one student and -12 for the other student, and -4 for one student and 4 for the other student. The differences are clearly different as they are additive inverses of each other, but since the differences are squared, the numbers become the same after squaring.

Answer: the correct answer is 10step-by-step explanation: let the number be n, then the expression becomes,then“twelve more than the quotient of a number and two, decreased by four” iswhen n=4,we substitute 4 whetever we see n to get,we simplify to obtain,we further simplify to get,therefore the correct answer is c.

A. is the answer in this question