Download Quiz 1.

Checkpoint Quiz 1.4

Name:

1. Determine if the relation whose graph is below represents y as a function of x. If so, state the domain and range using interval notation.

(a)

x

y

−4 −3 −2 −1 1

−1

1

2

3

4

(b)

x

y

−4 −3 −2 −1 1 2 3 4 5

−3

−2

−1

1

2

2. Does the equation y2 − y2x = 1 describe y as a function of x? Explain.