![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
One-to-one function:
\A function is said to be one to one if every input of the domain correspond to different outputs in the range.
\In the table of values, no value of ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=9ad7b3445df115c1a39fd485becb045a.png\")
repeats twice.
Therefore, the function is a one to one function.
\![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
The function is a one to one function.