Nova Math - Problem Set D: Defined Functions

Question Name	Average time to answer (seconds)	Total correct answers	Total incorrect answers
If = (x + x, for all x, what is the value of ... ...	252	65	24
For all numbers N, let denote the least integer greater than or equal ... ...	50	74	14
Let x⊕y = for all x and y. Column A Column B 3⊕4 9	45	84	3
ϕ is a function such that 1 ϕ a = 1 and a ϕ b = b ϕ ... ...	140	50	37
The symbol Θ denotes one of the operations: addition, subtraction, ... ...	61	80	7
4 #12 =	56	71	16
If x # y= −1, which of the following could be true?	118	42	45
(a + b) =	118	62	25
If (2 - x)* = (x − *, then x.	116	76	23