The chart shows the high temperature each day in Fairbanks, Alaska during the month of February 2009. What was the median high temperature in Fairbanks for the first week of the month? 10°F -6°F -1°F -16°F

Which statement is true about the extreme value of the given quadratic equation? a. the equation has a maximum value with a y-coordinate of -21. b. the equation has a maximum value with a y-coordinate of -27. c. the equation has a minimum value with a y-coordinate of -21. d. the equation has a minimum value with a y-coordinate of -27.