Use algebra to determine whether the function 𝑓(𝑥) = 22𝑥3 − 19𝑥 is even, odd, orneither.
Question
Use algebra to determine whether the function 𝑓(𝑥) = 22𝑥3 − 19𝑥 is even, odd, orneither.
Solution 1
Sure, to determine whether the function is even, odd, or neither, we need to apply the definitions of even and odd functions.
An even function is a function for which f(x) = f(-x
Solution 2
Sure, to determine whether the function is even, odd, or neither, we need to apply the definitions of even and odd functions.
An even function is one where f(x) = f(-x) for all x in the domain of the function. An odd function is one where -f(x) = f(-x) for all x in the domain of the function.
Let's first check if the function is even:
f(-x) = 22(-x)^3 - 19(-x) = -22x^3 + 19x
This is not equal to f(x), so the function is not even.
Now let's check if the function is odd:
-f(x) = -(22x^3 - 19x) = -22x^3 + 19x
This is equal to f(-x), so the function is odd.
Therefore, the function 𝑓(𝑥) = 22𝑥^3 − 19𝑥 is odd.
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