Diagnostic diagrams for all ChaMP galaxies that exhibit emission-line activity, with relatively high (>2) signal-to-noise line flux measurements in all six lines (top) and in only [N ii], [O iii], Hβ, and Hα (bottom). The solid and dashed black curves illustrate the Kewley et al. (2001) and Kauffmann et al. (2003b) separation lines, while the diagonal lines illustrate the separation between Seyferts and LINERs by Kewley et al. (2006). The gray points correspond to galaxies in ChaMP fields that fall on or near the ChaMP ACIS chips, but are not necessarily X-ray detected. Seyferts, Liners, Transition Objects, and H ii galaxies are shown as asterisks, open circles, blue squares, and triangles, respectively. The orange crosses are six-line nonclassified objects with a four-line class. It is quite apparent that the combination of the four-line classification and X-ray detection is very efficient in distinguishing between different types of emission among LLAGNs, quantitatively identical to the six-line method.