Which of the following describes the graph of y = x² - 7x + 12?
1) The graph has zeroes at x = -4 and x = -3 and it opens downward.
2) The graph has zeroes at x = 4 and x = 3 and it opens downward.
3) The graph has zeros at x = -4 and x = -3 and it opens upward.
4) The graph has zeroes at x = 4 and x = 3 and it opens upward.