Geometry A Big Ideas 3.2
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Here's a diagram to help students who are stuck on Big Ideas 3.2. The most challenging step is getting a general sense of the location of point C. Note that it is actually not on the x-axis, it is in fact slightly below the x-axis. The exact location is not required for this assignment. Note the relationship between lines AB and CD. The equation for CD can be obtained by using the slope for CD and point D.