Final answer:
Solar panels on the roof of a solar-heated home in middle latitudes in the Southern Hemisphere should be directed towards the north for maximum daytime heating.
Step-by-step explanation:
Solar panels on the roof of a solar-heated home in middle latitudes in the Southern Hemisphere should be directed towards the north for maximum daytime heating. This is because the sun is in the northern part of the sky in the Southern Hemisphere. By pointing the solar panels towards the north, they will receive the most direct sunlight throughout the day, maximizing the amount of heat that can be collected.