The parent chain and the numbers are marked as red in the image.
Work Step by Step
1. Find the parent chain. In this case, the parent chain will have the triple bond, and the largest chain that we can find, which is 8 carbons. 2. Identify where you are supposed to start counting. The count should start from the top (left), since there is a triple bond next to it. ** We need to count in a way that, the triple bond will get the minimum number possible, which we do by starting from the top.