To determine which scale drawing is a dilation that increased the size of the original object, we need to look at the illustrations and see if any of them show a larger version of the original object without altering its shape.
Generally, a dilation keeps the shape of an object the same but changes its size proportionally. For instance, if Figure 1 (chair) was depicted larger than its original size while keeping its proportions the same, it would qualify as a dilation.
Without the actual images to refer to, I can't specify which figure is the dilation. However, you should look for a figure that shows one of the original objects presented (chair, tree, nut, or house) enlarged in a way that maintains the shape and proportions of the original.
If you can provide descriptions of the images or specify which figure appears enlarged, I can assist you more accurately in identifying the correct figure that represents a dilation.