Larson, Ron, 1941- Intermediate algebra : : graphs and functions / [electronic resource] / Roland E. Larson, Robert P. Hostetler, Carolyn F. Neptune, with the assistance of David E. Heyd.. — Lexington, Mass. : : D.C. Heath,, c1994.. — xxii, 800, 105 p. : : ill. (some col.) ; 24 cm.