Question

A roller coaster car goes above and below ground. Use the number line to show it’s changes in height. What is the height of the car at the end of the ride?

Answer 1

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