Amanda uses the equation y = kx to determine how much money (y) she earns after working any number of hours (x). amanda earned $350 after working 40 hours. what is the value of k in amanda’s equation?

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.