Kayden is a stunt driver. One time, during a gig where she escaped from a building about to explode(!), 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.Let y represent the distance (in meters) from the safe zone after x seconds.Complete the equation for the relationship between the distance and number of seconds.y=□
Q. Kayden is a stunt driver. One time, during a gig where she escaped from a building about to explode(!), 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.Let y represent the distance (in meters) from the safe zone after x seconds.Complete the equation for the relationship between the distance and number of seconds.y=□
Identify Distance and Time: Identify the initial distance from the safe zone and the time it took to reach the remaining distance.Initial distance from the safe zone: 160 metersTime taken to reach 85 meters away from the safe zone: 3 seconds
Calculate Distance Covered: Calculate the distance covered in 3 seconds.Distance covered in 3 seconds = Initial distance - Distance remaining after 3 secondsDistance covered = 160 meters - 85 metersDistance covered = 75 meters
Calculate Speed: Calculate the speed at which Kayden is driving.Speed = Distance covered / Time takenSpeed = 75 meters / 3 secondsSpeed = 25 meters per second
Formulate Linear Equation: Formulate the equation relating distance from the safe zone y to the time x in seconds.Since Kayden is driving at a constant speed, the relationship between the distance and time is linear.The general form of the equation is y=mx+b, where m is the speed and b is the initial distance from the safe zone.We know the speed (m) is −25 meters per second (negative because the distance from the safe zone is decreasing).
Determine Initial Value: Determine the initial value b in the equation.The initial value is the distance from the safe zone when x (time) is 0, which is 160 meters.
Write Final Equation: Write the final equation using the values for m and b.y=−25x+160This equation represents the relationship between the distance from the safe zone (y) and the number of seconds (x) Kayden drives.
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