Question

Which of the following is the graph of f(x)−1?

Answer 1

was assigned with this problem (the reference text is attached):

Which of the following, if included in a student's paper, would NOT be an example of plagiarism?

1. In the game of baseball, which is rather boring, the batter stands on home base (Hughes 1).

2. Baseball is rather surprisingly known as "America's Favorite Pastime."

3. Baseball is "a rather boring sport played between two teams of nine players" (Hughes 1).

4. All of these are plagiarism.

The answer tells that only the third choice is NOT a plagiarism. My question is, why is the first choice a plagiarismwas assigned with this problem (the reference text is attached):

Which of the following, if included in a student's paper, would NOT be an example of plagiarism?

1. In the game of baseball, which is rather boring, the batter stands on home base (Hughes 1).

2. Baseball is rather surprisingly known as "America's Favorite Pastime."

3. Baseball is "a rather boring sport played between two teams of nine players" (Hughes 1).

4. All of these are plagiarism.

The answer tells that only the third choice is NOT a plagiarism. My question is, why is the first choice a plagiarism

Answer 2

The graph of f(x)−1 is the one that is shifted down one unit from the graph of f(x). This is the graph labelled C in the image.

The graph of f(x) is shown as a blue line in the image.

Subtracting 1 from f(x) shifts the graph of f(x) down by 1 unit.

So, the graph of f(x)−1 is the blue line shifted down by 1 unit, which is the graph shown in option C.

The graphs in options A, B, and D are not correct because they do not represent the result of subtracting 1 from the graph of f(x).