Use the graph to determine the domain and range of the relation, and whether the relation is a function.
a. Domain: -10, -8, -6, -4, -2, 0, 2, 4, 6, 8, 10
Range: y
Yes, the relation is a function.
b. Domain: -10 ≤ x ≤ 10
Range: y
Yes, the relation is a function.
c. Domain: x
Range: y
No, one y-value is shared by two x-values.
d. Domain: x
Range: y
No, one y-value is shared by two x-values.