Answer:
The height of the car at the end of the ride is 4 m above the ground level
Step-by-step explanation:
Let
h ------> the height of the car
1) The car starts at 1 meter above ground level
so
the height of the car in this moment is equal to
h=+1 m----> is positive because is above ground level
2) The car drops 4 meters
the height of the car in this moment is equal to
h=1-4=-3 m -----> is negative because is below ground level
3) The car rises 13 meters
the height of the car in this moment is equal to
h=-3+13=10 m ----> is positive because is above ground level
4) The car drops 6 meters
the height of the car in this moment is equal to
h=10-6=4 m -----> is positive because is above ground level
therefore
The height of the car at the end of the ride is 4 m above the ground level
