An input–output rule must connect the two entries within each row, not merely describe how outputs change as you move down the table. Compare every output with its paired input to look for one consistent operation, express that operation using x and y, and test it on all four rows. A rule that misses even one row does not model this table.
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.