the graph below shows the relationship between the number of months different students practiced tennis and the number of matches they won:

part a: what is the approximate y-intercept of the line of best fit and what does it represent? (5 points)

part b: write the equation for the line of best fit in the slope-intercept form and use it to predict the number of matches that could be won after 13 months of practice. show your work and include the points used to calculate the slope. (5 points)

Can someone me out here number 4 plz

If the discriminant if a quadratic equation is 4 which statement describes the roots?

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