Terry was asked to determine whether f(x)=x3+x1 is even, odd, or neither. Here is his work:Step 1: Find expression for f(−x)f(−x)amp;=(−x)3+(−x)1amp;=−x3−x1Step 2: Check if f(−x) is equal to f(x) or −f(x)−x3−x1 isn't the same as f(x)=x3+x1 or−f(x)=−x3+x1. Step 3: Conclusionf(−x) isn't equivalent to either f(x) or −f(x), so f is neither even nor odd.Is Terry's work correct? If not, what is the first step where Terry made a mistake?Choose 1 answer:(A) Terry's work is correct.(B) Terry's work is incorrect. He first made a mistake in Step 1.(C) Terry's work is incorrect. He first made a mistake in Step 2.(D) Terry's work is incorrect. He first made a mistake in Step 3.
Q. Terry was asked to determine whether f(x)=x3+x1 is even, odd, or neither. Here is his work:Step 1: Find expression for f(−x)f(−x)=(−x)3+(−x)1=−x3−x1Step 2: Check if f(−x) is equal to f(x) or −f(x)−x3−x1 isn't the same as f(x)=x3+x1 or−f(x)=−x3+x1. Step 3: Conclusionf(−x) isn't equivalent to either f(x) or −f(x), so f is neither even nor odd.Is Terry's work correct? If not, what is the first step where Terry made a mistake?Choose 1 answer:(A) Terry's work is correct.(B) Terry's work is incorrect. He first made a mistake in Step 1.(C) Terry's work is incorrect. He first made a mistake in Step 2.(D) Terry's work is incorrect. He first made a mistake in Step 3.
Find f(−x): Find the expression for f(−x). f(−x)=(−x)3+−x1 This simplifies to −x3−x1, since (−x)3 is −x×x×x which is −x3 and −x1 is −x1.
Check equality: Check if f(−x) is equal to f(x) or −f(x).f(−x)=−x3−(1)/(x) is not the same as f(x)=x3+(1)/(x). Now check if it's equal to −f(x): −f(x)=−[x3+(1)/(x)]=−x3−(1)/(x). Oops, looks like Terry made a mistake here. f(−x) is actually the same as −f(x).
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