StefaniVillata254 StefaniVillata254 02-10-2015 Mathematics contestada What is the slope and y-intercept of this line? y = –3x + 9 A. slope: 3, y-intercept: –9 B. slope: –3, y-intercept: 9 C. slope: 1, y-intercept: –3 D. slope: 9, y-intercept: –3