Which of the following relationships represents a function? a. (-4,4), (6,2), (-2,1), (9,2) b. (-4,4), (6,6), (-4,3), (9,2) c. (-4,4), (6,6), (6,3), (8,2) d. (-4,0), (6,3), (-2,1), (6,5)

A. is the answer

Step-by-step explanation:

A. Since there is one value of  y  for every value of  x

B. is not a function x  =  − 4  produces  y  =  4  and  y  =  3

C. is not a function x  =  6  produces  y  =  6  and  y  =  3

D. is not a function   x  =  6  produces  y  =  3  and  y  =  5

Hope That Helps!

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.