Appendix D - D - Viewing Window and Interpreting Window Settings - Exercise Set - Page 688: 11

Xmin = -12 Xmax = 12 Xscl = 3 Ymin = -12 Ymax = 12 Yscl = 3

Xmin is -12 because the minimum x-value listed is -12 Xmax is 12 because the maximum x-value listed is 12 Xscl is 3 because from 0-12, there are 4 marks on the x-axis (including 12). 12/4 = 3 so each mark represents an increment or decrement of 3 Ymin is -12 because the minimum x-value listed is -12 Ymax is 12 because the maximum x-value listed is 12 Yscl is 3 because from 0-12, there are 4 marks on the y-axis (including 12). 12/4 = 3 so each mark represents an increment or decrement of 3.