Choose a number line below to model the situation: after walking 5 steps forward, julie walked 5 steps backward. a horizontal number line is shown with labels at negative 5, 0, and 5. a blue arrow (labeled 5 steps forward) begins at 0 and ends at 5. a red arrow (labeled 5 steps backward) begins at 0 and ends at negative 5. a horizontal number line is shown with labels at 0 and 5. a blue arrow (labeled 5 steps forward) begins at 0 and ends at 5. a red arrow (labeled 5 steps backward) begins at 5 and ends at 0. a horizontal number line is shown with labels at 0, 5, and 10. a blue arrow (labeled 5 steps forward) begins as 0 and ends at 5. a red arrow (labeled 5 steps backward) begins at 10 and ends at 5. a horizontal number line is shown with labels at 0, 5, and 10. a blue arrow (labeled 5 steps forward) begins at 0 and ends at 5. a red arrow (labeled 5 steps backward) begins at 0 and ends at negative 5.