Sketch a graph of the following inequality and the choose the correct description of the graph: x + y - 5 ≥ 0 
Slope is -1, y-intercept is -3, dashed line, shaded below 
Slope is -1, y-intercept is -3, dashed line, shaded above 
Slope is 1, y-intercept is -3, dashed line, shaded below 
Slope is 1, y-intercept is -3, dashed line, shaded above