Judge the claim by testing the defining feature of halfway, rather than by appearance alone. Average the two negative endpoints, then verify that the proposed value lies between them and has the same distance to each. Those checks determine both whether the claim is valid and whether its sign has been preserved.
Inside Gozunta
Turn the preview into practice.
More than a preview
Gozunta lets you study this problem—and more than 10,000 others.
Create targeted learning sessions, use hints, check your answer, read the walkthrough, watch the video, print the work, and track your progress.
