5003 Praxis Practice Test Practice Question
Which THREE of the following are rays shown in the figure?
Correct Answer: A,C,E
Rationale: A ray is defined as a part of a line that has a fixed starting point and extends infinitely in one direction.
- **vec AC**: This option starts at point A and extends through point C, making it a valid ray.
- **vec CA**: This option starts at point C and extends back to point A, which does not fit the definition of a ray since it doesn't extend infinitely in one direction from A.
- **vec AD**: This option starts at point A but does not extend infinitely in one direction, as it is not clearly defined in the context provided.
- **vec DA**: Similar to vec AD, this option does not extend infinitely from point D, making it invalid.
- **vec BC**: This option starts at point B and extends through point C, which fits the definition of a ray, making it valid.
Thus, the rays identified as valid are A (vec AC), C (vec AD), and E (vec BC).
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