1.41: Area bounded by line and hyperbola

The diagram shows the straight line $2x + y = -5$ and part of the curve $xy + 3 = 0$. The straight line intersects the $x$-axis at the point $A$ and intersects the curve at the point $B$. The point $C$ lies on the curve. The point $D$ has coordinates $(1, 0)$. The line $CD$ is parallel to the $y$-axis.