About the Author
Dale Johnson teaches the Math Review portion of test preparation courses for the CBEST, CSET, GRE, and GMAT through California State University Extended Studies, as well as at the Claremont Colleges. He is coauthor of CliffsAP Calculus AB and BC and served as technical editor for Calculus For Dummies, Calculus Workbook For Dummies, and CliffsQuickReview Calculus (all published by Wiley).