Larson, Ron <br/><br/>
Precalculus  a graphing approach 
Ron Larson, Robert P. Hostetler, Bruce H. Edwards ; colab. David C. Falvo. 
 - 3rd ed. 
 - Boston, MA  Houghton Mifflin  c2001. 
 - xxii, 834, 185 p.  ill.  26 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0618052895 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics<br/>Algebra--Graphic methods.<br/>Functions