Russell bought a $1,240 sound system on an installment plan. The installment plan included a 20% down payment and 18 monthly pay
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Answer: second option.
Step-by-step explanation:
By definition, a function is even when:
Then, knowing this, given the function you can substitute
into this function:
Now you need to simplify the function. Then you get:
In this case, you can see that:
Therefore, the function is not even.
As you observed in the procedure above, the statement that best describes how to determine whether the given function is even is:
Determine is is equivalent to