use the slope formula first m = (y2-y1)/(x2-x1) m = (-1-3)/(-1-0) m = (-4)/(-1) m = 4 The slope is m = 4
The y intercept is b = 3 because this comes from the point (0,3) The x value is always 0 for the y intercept. This is where the graph crosses the y axis
Since m = 4 and b = 3, we go from y = mx+b to y = 4x+3
