The coordinate of an object is given as a function of time by x = 7t 3t2, where - Science - Motion

Question

The coordinate of an object is given as a function of time by x =
7t − 3t2, where x is in meters
and t is in seconds Its average velocity over the interval from t =
0 to t = 4 s is:
A 5m/s
B −5m/s
C 11m/s
D −11m/s
E −14 5m/s
ans: B plz explain

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The coordinate of an object is given as a function of time by x = 7t − 3t2, where x is in metersand t is in seconds. Its average velocity over the interval from t = 0 to t = 4 s is:A. 5m/sB. −5m/sC. 11m/sD. −11m/sE. −14.5m/sans: B..plz explain

The coordinate of an object is given as a function of time by x = 7t − 3t², where x is in meters
and t is in seconds. Its average velocity over the interval from t = 0 to t = 4 s is:
A. 5m/s
B. −5m/s
C. 11m/s
D. −11m/s
E. −14.5m/s
ans: B..plz explain