Question 1 (100 points) Write the letter of the term that best describes each example or description.

Column A

Column B

1.

a discrete relation

(x) = x² - 6

D = {-2.4), R= {3,4,7)

2

b. continuous relation

3. f(x) = 4x + 3

Conto function

4. b

d. dependent variable

The type of relation defined by the function

y = -5x + 10

D={-3,-2), R= {1}

5.

e quadratic function

f. absolute value function

6.

The f(x) in f(x) - [[x]] +1.

7.

8. one-to-one function

8.

1

h. independent variable

The x in y = -2(x + 3) + 5.

[x+3 if x < 0

(2-x if xzo

8-5

i piecewise-linear function

9.

j. rate of change

10.

a

The type of relation defined by the points (0,

4). (2,5), (3, 3).

If your score on your next statistics test is converted to a z score, which of these z scores would you prefer: minus2.00, minus1.00, 0, 1.00, 2.00? why? a. the z score of 2.00 is most preferable because it is 2.00 standard deviations above the mean and would correspond to the highest of the five different possible test scores. b. the z score of 0 is most preferable because it corresponds to a test score equal to the mean. c. the z score of minus2.00 is most preferable because it is 2.00 standard deviations below the mean and would correspond to the highest of the five different possible test scores. d. the z score of minus1.00 is most preferable because it is 1.00 standard deviation below the mean and would correspond to an above average