Download Quiz 1.

Checkpoint Quiz 1.2

Name:

1. Sketch the following relations:

(a) {(−3, 2), (−1, 0), (0,−2), (1, 3)} (b)

{( n, 6

n

) : n = ±1,±2,±3)

} (c) {(x,−2) : x > 1} (d) {(x, y) : x > 1, y ≤ 2} (e) {(x, y) : x > 1, −1 < y ≤ 2}

2. Describe the following relations using the roster method.

(a)

x

y

−4 −3 −2 −1 1 2 3 4 −1

1

2

3

4

The graph of relation A

(b)

x

y

−3 −2 −1 1 2 3

−3

−2

−1

1

2

3

The graph of relation B