23. If a positive number is added to the variable of a radical function, its graph will shift to the ___ by the
value of that number.

up
left
right
down

This size running track is usually called a 400 meter track. however if a person ran as close to the inside as possible on the track they would run less than 400 meters in one lap. how far away from the inside border would someone have to run to make one lap equal exactly 400 meters