Which relation is a function? A. X -14,-9-1,4,6 Y 6,2,-3,2,4 B. X -2,1,9,9,15 Y -3,-3,0,-8,12 C. X -4,6,6,7,9 Y -1,-3,-1,15,1 D. X -16,-11,10,10,16 Y 2,0,1,-9,2
❅☃ To find a function you need to look at the x values, if one of the same x value is repeated more then once, it is considered a non function. ❅☃ Option A: -14 -9 -1 4 6 As you can see no repeated values. Therefore A is already our function but lets look at the others just in case. ❅☃ Option B -2 1 9 9 15 9 was repeated therefore it is a non function. ❅☃ Option C -4 6 6 7 9 6 was again repeated. Non function. ❅☃ And lastly, D. -16 -11 10 10 16 10 was reapted. Non function. ❅☃ Your answer is A
