Answer:
The vertical line test can be used to determine whether a graph represents a function. If we can draw any vertical line that intersects a graph more than once, then the graph does not define afunction because a function has only one output value for each input value.
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Answer:
Internal citation
Explanation:
<u> Internal citation is a piece in the writing that points to what outsource reference are used in the writing and who has written the original idea the texts uses.</u>
It is placed at the end of the information, between the brackets, and it involves the author’s last name and a page that includes the source data. It can sometimes also include the year of publishing. This way, one can easily find the source information in the cited piece. The full references are put at the end of the text, in the literature section.