Answer:
The required equation is [tex]y=160-25x[/tex].
Step-by-step explanation:
Consider the provided information.
She drove at a constant speed to get to the safe zone that was 160 meters away. After 3 seconds of driving, she was 85 meters away from the safe zone.
The distance from the safe zone = 160 meters,
And, after 3 seconds she is 85 meters far away from the safe zone,
Distance cover in 3 seconds = 160 - 85 = 75 meters,
As we know: [tex]Speed=\frac{Distance}{Time}[/tex]
[tex]Speed=\frac{75}{3}=25[/tex]
Hence, her speed is 25 meter per second.
Let y represent the distance (in meters) from the safe zone after x seconds.
[tex]y=160-25x[/tex]
Hence, the required equation is [tex]y=160-25x[/tex].