Which rational expression has a value of 1 when x = –1?

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

If you answer right ill give brainliest, : )

If benito is selecting samples of five values from the table, which row will result in the greatest mean? population data row 1 4 2 2 3 3 row 2 3 3 4 3 2 row 3 2 4 3 4 3 row 4 3 4 4 7 3 row 1 row 2 r