Concept explainers
a. On graph paper, draw xand y-axes and plot the following points, labeling them A, B, C, and D:
(5,1), (-3, 4), (-2,-5), (4,-1)
Plot the locations of these points after they have been rotate 90°counterclockwise about the origin, labeling the images A', B', C', and D'.
b. If (a, b) is a point in a coordinate plane, what will its location be after it has been rotated 90° about the origin ? Explain your answer
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