Relations and functions

look at the Cartesian diagram below


Determine and write down the set of ordered pairs according to the above relation?

• {(Febri, bakso), (Ani, soto), (Johan, bakso), (Gilang, rawon)}

• {(Febri, Johan, bakso), (Ani, soto), (Gilang, rawon)}

• {(Bakso, Febri), (Soto, Ani), (Bakso, Johan), (Rawon, Gilang)}

• {(Bakso, Febri, Johan), (Soto, Ani), (Rawon, Gilang)}

Consider the following Venn diagram.

The exact function from A to B is ...

• . f(x) = 2x³

• . f(x) = x²

• f(x) = 2x⁴

• f(x) = x³

The following arrow diagram which includes the function from A to B is....

• 
• 
• 
• 

The range of the set of ordered pairs {(2,1), (3,5), (4,2), (4,4), (6,4)} is....

• {1,2,3,4,5}

• {1,2,4,6}

• 
  {1,2,3,4,5,6}

• {1,2,4,5}

The following set of pairs is known.
K = {(1, a), (2, b), (3, c), (4, d)}
L = {(1, a), (2, a), (3, b), (4, c)}
M = {(1, c), (2, a), (3, b), (4, c)}
N = {(1, d), (2, c), (3, b), (4, a)}
The set that shows one-to-one correspondence is...

• K and L

• M and N

• K and N

• L and M

The number of possible mappings from {a,b,c} to {x,y} is...

• 8

• 9

• 5

• 6