Answer:
Option (C) 20 feet per minute.
Explanation:
In the given graph as it depicts the distance that a robot walks per minutes.
We have to find out robots speed.
In the given graph we can see
x =Time ( per minute ) and y = Distance (in feet )
At x = 1, y = 20 (ft.)
At x = 2, y = 40 (ft.)
At x = 3, y = 60 (ft.)
At x = 4, y = 80 (ft.)
At x = 5, y = 100 (ft.)
Here, we can see that at every minute robot walks 20 feet.
So, The speed of robot 20 feet per minute.
Option (C) 20 feet per minute is the correct answer.