2poils
which description matches the transformations y = cosx undergoes to
produce y = -3 cos(x)+1?
o
a. horizontal shift left 3 units, then vertical shift up by 1 unit
b. vertical stretch by factor 3, reflection across the x-axis, then a
vertical shift up 1 unit
c. reflection across the y-axis, vertical shift up by 1 unit, horizontal
shift right by 3 units
o
d. horizontal compression by factor 3, vertical shift by 1 unit up, then
a reflection across the x-axis

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