Cuántas soluciones tienen estás ecuaciones? Y=0.5x+3.5
Y=x+7

Y=3/4x-12
Y=0.75x+12

Y=11x+0.5
Y=1/11x+0.5

Y=2.3x+1.7
Y=2.3x-1.7

Y=6-4x
Y=-2x+3

Y=x+1/2
Y=1/2x+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