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We'll first create the domain i.e. the rectangle, and then mesh it. Let's define the palette on which we'll draw the domain and overlay grid lines on the palette. This is done using the Grid options on the top, right corner of the GUI. The grid lines are helpful in determining coordinates of points. From the problem statement, the range of the drawing palette is chosen as -0.40<x<1 and -0.2<y<1.2. This will fit the domain within the palette with a little bit of space to spare around the edges. We'll choose the spacing of the grid lines to be 0.1 in x and y directions. Thus, enter Xmin=-0.4, X spacing=0.1, Xmax=1, Ymin=-0.2, Y spacing=0.1, and Ymax=1.2. (As you enter these values, you can jump to the next entry using the Tab key.) Click on Make Grid.

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