Final answer:
Option c. Xmin = -5; Xmax = 25; Ymin = -5; Ymax = 5 would be an appropriate horizontal and vertical scale for the viewing window on a graphing calculator for the function f(x) = xº + 12.
Step-by-step explanation:
The appropriate horizontal and vertical scale of the viewing window on a graphing calculator for the function f(x) = xº + 12 would be option c. Xmin = -5; Xmax = 25; Ymin = -5; Ymax = 5.
The reason for this is that the horizontal scale should be large enough to include the entire range of x-values from -5 to 25. Similarly, the vertical scale should be large enough to encompass the range of y-values from -5 to 5. This ensures that the entire graph of the function will be visible in the viewing window.