158. The position–time graph of a particle moving along the x-axis is shown in the figure below, in the form of a parabola. If the distance traveled by the particle in the time interval $t = 3\ \text{s}$ to $t = 9\ \text{s}$ is 12 meters, what is the displacement of the particle in this interval?
[Figure: A parabolic x(m) vs t(s) graph. The curve rises to a maximum of 48 m, then decreases, crossing the t-axis at approximately $t = 6$ s.] (1) zero (2) $3$ (3) $6$ (4) $12$
\textbf{158.} The position–time graph of a particle moving along the x-axis is shown in the figure below, in the form of a parabola. If the distance traveled by the particle in the time interval $t = 3\ \text{s}$ to $t = 9\ \text{s}$ is 12 meters, what is the displacement of the particle in this interval?
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\textit{[Figure: A parabolic x(m) vs t(s) graph. The curve rises to a maximum of 48 m, then decreases, crossing the t-axis at approximately $t = 6$ s.]}
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(1) zero \hfill (2) $3$ \hfill (3) $6$ \hfill (4) $12$
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