Draw the graphs of the equations x + y = 5, y = - 2 and x = 1 on the same Cartesian
plane. Shade the region bounded by these graphs, name the figure obtained and find its area.
The graph is attached in the figure where the area between the curves has been shaded. As can be seen, the triangle formed is a right triangle whose lengths of its legs is 7. Therefore, its area will be:
