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Word Bank: increasing, decreasing, even, odd, invertible

Find the identification(s) of each of these functions. If there is none, put "Null" and if there are multiple, put the first letter of their identification along with the rest. (e.g. $f(x) = \sqrt{x-5}$ is both increasing and invertible, so you would put II for that matter.)

(1): $f(x) = \frac{x}{x^2+1}$

(2): $f(x) = x + 1 + \frac{1}{x}$

(3): $f(x) = |x| \cdot \sqrt{x}$

edited by MathProblemSolver101  Jul 7, 2021
 #1
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(1) odd

(2) null

(3) increasing and invertible

 Jul 7, 2021
edited by Awesomeguy  Jul 7, 2021
 #2
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TYSM! They were all correct :D

 #3
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Ay nice

Awesomeguy  Jul 7, 2021

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