An indention where the first line of text is indented and the second and succeeding lines start at the left margin is called

first-line indent

Explanation:

The answer is -- first-line indent

The "first-line indent" is a guideline provided by the APA or American Psychological Association for formatting or writing a reference page.

When we start writing text in a page, the first line on our page will line up from the left margin of the page and each line after that is the second and the succeeding lines will also start lining up at the left margin of the page when first line intend is turned on. This is called first-line indent.

Thus the answer is  first-line indent

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