1 - Given the following relation on sets A and B defined below, select the corre

ID: 2965065 • Letter: 1

Question

1 - Given the following relation on sets A and B defined below, select the correct answer.

The relation R = { (1,10), (3,40), (5,30), (4,40), (2,50), (6,20)}

A - Is a funciton that is injective

B - Is not a function

C - Is a function that is bijective

D - Is a function that is surjective

2 - Define a function f from Z to Z by f(n) = (n-1)*(1-n).

What is the value of f(4)?

A 9

B 16

C -3

D -9

3 - Define a function f from Z to Z by f(n) = (n-1)*(1-n).

What is the value of f(-4)?

A 16

B -9

C 4

D -25

4 - What is the fifth term of the sequence defined by:

D - Is a function that is surjective

2)(4-1) (1-4)
= -9

3)(-4-1)(1+4)
= -25

4) a1 = -2
an = (

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