Identify the function that has a vertex of (2,-1) and is stretched vertically by a factor of 3. f(x) = ⅓|x - 2| - 1 f(x) = |x - 2| + 4 f(x) = ⅓|x + 2| - 1 f(x) = 3|x - 2| - 1

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