x-intercept of a line is the point at which the line crosses the x axis: x-intercept = (x,0) y-intercept of a line is the point at which the line crosses the y axis: y-intercept = (0,y) slope: Let (x1, y1) , (x2, y2) be two points the the slope for those two points is rise/run: y2 - y1 ---------------------------- x2 - x1