Question

For each set of ordered pairs, indicate whether it is a function. If not, briefly explain why it is not a function.

(a) { (2, 2) , (2, -3) , (2, 0) }

(b) { (2, 2) , (-3, 2) , (0, 2) }

(c) { (2, 2) , (-3, -3), (0, 0) }

Answer 1

for the ca {2,0, (2, 3), (2,0)} set of todaed pairs to be a function the values of a should not be for different values of y same Ik y=2 and y=0 ; x is same in Hence Is not a function b) { 4,2), (3, 2), (0,23} for value every of a there is different value of y Hence it is a funchon to {(2, 2), (3, 3), (0, 0)} for every value of a there is different value of y Hence it is also a function