Question 703975
f(x)=x^4-4x^2 explain why it is a function? b.find the y and x intercepts c. find the domain of the function and express your answer in interval notation
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Given equation is a function because for each x-value in the domain, there is exactly one y-value in the range.
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y-intercept
set x=0
y=0
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domain: (-∞,∞)