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Simple Function Operations

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1a.)Is y=x^4 a single- or multi-valued function?
b.)Is y=f(x)=x^2+4x an even, odd, or neither
c.)What is the inverse function of y=x^4
d.)What is the inverse function of (b.),y=x^2+4x?
e.)Is the inverse function from (d.), odd, even, or

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a) y=x^4 is a single-valued function
<br>b) y=f(x)=x^2+4x is neither even nor odd.
<br> f(-x)=x^2-4x is not ...

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