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## Homework Statement

This question here. Can someone please tell me why we have 2 cases to consider.

http://archives.math.utk.edu/visual.calculus/0/domain.1/8.html

I dont understand why it says we have 2 cases to consider.

8 x - 4 > 0 and x - 3 > 0.

8 x - 4 < 0 and x - 3 < 0.

why is one greater than and less than???