Question

which one of the following is not a function:
a) {(x,y) : x,yER , x^2 = y}
b) {(x,y) : x,yER , y^2 = x}
c) {(x,y) : x, yER, x = y^3}
d) {(x,y) : x, yER, y = x^3}​

Answer 1

Answer:

c is the answer plz Mark me barinlist and write it now