Choose the equation that shows a step in the process of completing the square on the given
quadratic.
y = x2 + 8x - 3

y = x2 + 8x + 8-3-8
y = x2 + 8x + 8 – 3 + 8
y = x2 + 8x + 16 – 3 – 16
y = x2 + 8x + 16 – 3+ 16

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