Choose the one alternative that best completes the statement or answers the question. The equation gives the position s = f(t) of a body moving on a coordinate line (s in meters, t in second
-s (m)

When is the body moving backward?
A) 8

Question

Choose the one alternative that best completes the statement or answers the question. The equation gives the position s = f(t) of a body moving on a coordinate line (s in meters, t in second
-s (m)
 
When is the body moving backward?
A) 8 < t $\le$ 10 
B) 2 < t < 3, 4 < t < 5, 7 < t < 8 
C) 8 < t < 9 
D) 2 < t < 3, 4 < t < 5, 7 < t < 9

Quizplus · Accepted Answer

The Answer of Choose the one alternative that best completes the statement or answers the question. The equation gives the position s = f(t) of a body moving on a coordinate line (s in meters, t in second
-s (m)
 
When is the body moving backward?
A) 8 < t $\le$ 10 
B) 2 < t < 3, 4 < t < 5, 7 < t < 8 
C) 8 < t < 9 
D) 2 < t < 3, 4 < t < 5, 7 < t < 9

Choose the One Alternative That Best Completes the Statement or Answers