Rewrite 4 − 5 using the additive inverse and display the new expression on a number line. 4 + 5 a horizontal number line is shown with labels from 0 to 16. a blue arrow begins at 0 and ends at 4. another blue arrow begins at 4 and ends at 9. 4 − (−5) a horizontal number line is shown with labels from 0 to 16. a blue arrow begins at 0 and ends at 4. another blue arrow begins at 4 and ends at 9. 5 − 4 a horizontal number line is shown with labels from negative 8 to positive 8. a blue arrow begins at 0 and ends at 5. a red arrow begins at 5 and ends at 1. 4 + (−5) a horizontal number line is shown with labels from negative 8 to positive 8. a blue arrow begins at 0 and goes to 4. a red arrow begins at 4 and goes to negative 1.