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Created for Albert.io. Copyright 2016. All rights reserved.

The above graph shows velocity as a function of time for an object moving along a straight line.

During which of the following time interval is the object moving in the negative direction and why?

A

From $0$ to $2\text{ seconds}$, shown by the negative slope of the line.

B

From $1$ to $2\text{ seconds}$, shown by the negative slope of the line, paired with negative values on the $y$-axis.

C

From $1$ to $4\text{ seconds}$, shown by the negative values on the $y$-axis.

D

From $2$ to $4\text{ seconds}$, shown by the line's zero slope, paired with negative values on the $y$-axis.

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