Final answer:
The real-world application of a radical function can be seen in the distance from your house to school.
Step-by-step explanation:
The real-world application of a radical function can be seen in the distance from your house to school. The function that represents this is:
d = sqrt((x - a)^2 + (y - b)^2)
Where:
- d represents the distance
 - x represents the x-coordinate of your house
 - y represents the y-coordinate of your house
 - a represents the x-coordinate of the school
 - b represents the y-coordinate of the school