Concept explainers
Up and over. In this graph, we see a red diagonal and a blue inverted V. The point (0.4, 0.4) lies on the diagonal and is marked with a black dot. If you travel vertically up from this point, what point do you hit on the V? If you start at the point (0.4, 0.8) on the V and travel horizontally toward the diagonal, what point on the diagonal do you hit?
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