17.) What is the value of x that will make {(1,3), (4,6), (7,9), (x-3, 12)} satisfy the relation y = x + 2? a. 9
b. 13
c. 17
d. 18
18.) Which of the following sets of ordered pairs does NOT describe a function?
a. {(2,2)} , (1,1) , (0,4)}
b. {(6,2) , (-1,1) , (1,1) , (2,2)}
c. {(3,0) , (9,1) , (0,4)}
d. {(5,2) , (1,-1) , (5,4)}
(reporting nonsense)