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Graph y = log2x.
Step 2 Switch x and y.
Step 3 Calculate ordered pairs.
y = 2x
Step 4 Exchange the x- and y- coordinates.
The new coordinates are
(4, 2), and (16, 4).
Step 5 Graph the new ordered pairs.
Notice that the graph of y = log2x is the reflection about the
line y = x of y = 2x.