Determine whether the relation y=12x+3 defines y as a function of x. Give the domain. Does the equation describe y as a function of​ x?
A.
​No, because the equation y=12x+3 assigns exactly one​ x-value to each distinct​ y-value.
B.
​No, because the equation y=12x+3 assigns more than one​ y-value to one of the​ x-values.
C.
​Yes, the equation y=12x+3 assigns exactly one​ y-value to each distinct​ x-value in the domain.
D.
​Yes, because the equation y=12x+3 assigns at least one​ y-value to each distinct​ x-value.