Determine the open intervals on which the graph s concave upward or concave downward. (Enter your answers using interval notation. If an answer does not exist, enter DNE.) f(x) = concave upward

College Algebra (MindTap Course List)
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ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
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Chapter3: Functions
Section3.3: More On Functions; Piecewise-defined Functions
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Determine the open intervals on which the graph is concave upward or concave downward. (Enter your answers using interval notation. If an answer does not exist, enter DNE.)
x2 + 2
f(x) =
x2 - 4
concave upward
concave downward
Transcribed Image Text:Determine the open intervals on which the graph is concave upward or concave downward. (Enter your answers using interval notation. If an answer does not exist, enter DNE.) x2 + 2 f(x) = x2 - 4 concave upward concave downward
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