Quiz 1

Show all work in a neat and organized fashion. Clearly indicate your answers.

10 points possible.

1. (2 pts.) Determine if the table below represents a function. Assume the input is in the left column.

Person's Height       Person's weight       (inches)       (pounds)                                   63       139       73       196       64       115       72       203       73       189

2. (4 pts.) A(t) is the amount in an investment account (in dollars) after in the year t. Write the following statements in function notation.

(a) The amount in the account was $2000 in the year 1989.

(b) In the year 1995, $1997 was in the account.

3. (4 pts.) A baby weighing 8 pounds at birth loses 15% of her weight in the 3 days after birth, and then, over the next 4 days, returns to her birth weight. During the next month, she steadily gains 0.6 pounds per week. On the attached graph paper, sketch a graph of the baby's weight from birth to 4 weeks. Accurately label both axes.