Please Help 55 pts. What is the slope and y-intercept of this line? y = –3x + 9 Responses slope: 3, y-intercept: –9 slope: 3, y -intercept: –9 slope: 9, y-intercept: –3 slope: 9, y -intercept: –3 slope: 1, y-intercept: –3 slope: 1, y -intercept: –3 slope: –3, y-intercept: 9