Appendix D - D - Viewing Window and Interpreting Window Settings - Exercise Set - Page 689: 15

Xmin=-10 Xmax=10 Ymin=-25 Ymax=25 Xscl=2 Yscl=5

We know the min and max for both the x-axis and y-axis because it is labelled on the graph. We know the Xscl is 2 because there are five notches between 0 and 10, including 10, meaning each notch must represent two units. We know the Yscl is 5 because there are five notches between 0 and 25, including 25, meaning each notch must represent five units.