Functions f(x) and g(x) are shown below: f(x) = x2 g(x) = x2 + 8x + 16 in which direction and by how many units should f(x) be shifted to obtain g(x)? (a) left by 4 points (b) right by 4 points (c) left by 8 points (d) right by 8 points

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