Relations (quiz)

Question 1

Let X = (1,2,3,4). If Z is a relation on X defined by (x,y) ∈ Z where y = 3x, what are the elements of Z?

Answer 1

(1,3),(2,6),(3,9),(4,12)

Question 2

The following set of ordered pairs represents the growth of a bean in x weeks:

{(1,2),(2,4),(3,6),(4,8)}.

What equation represents the growth of the bean?

Answer 2

y = 2x

Question 3

An equation that defines a relation wherein the value of y is obtained by taking the square of the assigned value of x

Answer 3

y = x (exponent 2)

Question 4

Which of the following ordered pairs is an element of the relation defined by y=x (exponent 3)

(1,3). (-2,8). (3, 27). (5, 25).

Answer 4

(3, 27)

Question 5

Generally, a relation is just a collection of?

Answer 5

Ordered pairs

Question 6

Determine which of the following ordered pairs is not an element of the relation defined by
y = x - 2.

(3,1). (1,-1). (2,0). (0,2).

Answer 6

(0,2)