If the image of a function of degree passes through points (3,5) and (- 4, - 9), then the coordinates of the intersection of the image of the function and the y-axis are______ ．

If the image of a function of degree passes through points (3,5) and (- 4, - 9), then the coordinates of the intersection of the image of the function and the y-axis are______ ．

Because the image of a function passes through points (3,5) and (- 4, - 9), let the analytic expression of a function be y = KX + B, so 3K + B = 5 − 4K + B = − 9, and the solution is k = 2B = − 1, so the analytic expression of a function is y = 2x-1. When x = 0, y = - 1, so the coordinates of the intersection point of the image of the function and the Y axis are (0, - 1)