Identify the slope and y-intercept of the function y = 4x - 9. O A. The slope is -9. The yintercept is (0,4). B. The slope is 4. The y-intercept is (0, -9). C. The slope is 9. The yintercept is (0,4). O D. The slope is 4. The y-intercept is (0,9).​