Question

error analysis describe the error in naming opposite rays in the diagram. ad and ac are opposite rays. ad and ac are not rays. a, c, and d are not collinear. ad and ac do not intersect. a, c, and d are not coplanar. name the ray that is opposite ad. ab ae ay ax

Explanation:

Opposite rays share an endpoint and form a straight - line. Points A, C, and D are not collinear, so $\overrightarrow{AD}$ and $\overrightarrow{AC}$ cannot be opposite rays. For a ray $\overrightarrow{AD}$, the ray that is opposite it must be on the same line with A as the endpoint. Among the options, $\overrightarrow{AB}$ is on the same line as $\overrightarrow{AD}$ with A as the common endpoint.

Answer:

The error is: A, C, and D are not collinear.
The ray that is opposite $\overrightarrow{AD}$ is $\overrightarrow{AB}$.