Texas Essential Knowledge and Skills (TEKS)
TX.111.28. Grade 8, Adopted 2012.
8.4. Proportionality. The student applies mathematical process standards to explain proportional and non-proportional relationships involving slope. The student is expected to:
8.4 (B) Graph proportional relationships, interpreting the unit rate as the slope of the line that models the relationship.
8.5. Proportionality. The student applies mathematical process standards to use proportional and non-proportional relationships to develop foundational concepts of functions. The student is expected to:
8.5 (A) Represent linear proportional situations with tables, graphs, and equations in the form of y = kx.
8.5 (E) Solve problems involving direct variation.