response to #5
Run a horizontal line through the graph, seeing where it intersects four lines. At roughly above -60 and below 130, it has 4 solutions.
posted by Sam P. at 8:13 PM
Blog for students in Mr. Karafiol's Period 4 Precalculus BC class to talk about math, learning math, etc.
posted by Sam P. at 8:13 PM
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