A relation<span> from a set X to a set Y is called a </span>function<span> if each element of X is related to exactly one element in Y
</span>
Answer:
option D. (-3,21),(-2,16),(0,6),(1,1),(2,-4)
Step-by-step explanation:
we have

we know that
To find the values of y substitute each value of x in the equation
so
1) For 

2) For 

3) For 

4) For 

5) For 

Answer:
i think its 24x-12? sorry if it is wrong
Is there anything else to this problem?