Answer:
Hence, Option 1 is correct equation 
Step-by-step explanation:
The distance it takes a car to come to a complete stop after the brakes are applied is related to the speed that the car is traveling. the stopping distances and speeds are shown in the table.
d s
20 17.89
40 25.30
60 30.98
80 35.78
100 40.00
We will check each option for table.

For d=20, Put d=20 into 

For d=40, Put d=40 into 

For d=60, Put d=60 into 

For d=80, Put d=80 into 

For d=100, Put d=100 into 

All the value of table satisfy the first equation.
Hence, Option 1 is correct equation 