Find a parametrization for the line segment beginning at P1 and ending at P2.P1(-1, 1, 4) and P2
A. x = 1t - 1, y = 1t, z = - 
t + 4
B. x = 1t - 1, y = 1, z = - 
t + 4
C. x = -1t, y = 1t, z = 
t + 5
D. x = -1t, y = 1, z = 
t + 5
Answer: B
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