A line passes through (6, 0) and (0, minus 2). Another vertical dashed line passes through (4, 0). Both intersect at (4, 0.5) to form a blue shaded portion on the top left side
W. A line passes through (6, 0) and (0, minus 2). Another vertical dashed line passes through (4, 0). Both intersect at (4, minus 0.5) to form a blue shaded portion on the top left side
X.
A line passes through (0.5, 0) and (0, minus 2). Another vertical dashed line passes through (4, 0) to form a blue shaded portion between the lines
Y. A line passes through (0.5, 0) and (0, minus 2). Another horizontal dashed line passes through (0, 4). Both intersect at (2, 4) to form a blue shaded portion on the top right side
Z.