Question

1. which is the correct notation for ray ba? * mark only one oval. ab (option 1) (overleftarrow{ab}) (option 2) (overrightarrow{ab}) (option 3) (overline{ba}) (option 4)

Explanation:

A ray is named with its endpoint first and then another point on the ray. For ray BA, the endpoint is B and it extends towards A. The correct notation has a right - facing arrow above the two - letter name starting with the endpoint.

Answer:

The correct notation for ray BA is $\overrightarrow{BA}$ (assuming Option 4 is $\overrightarrow{BA}$ as the others are incorrect notations for a ray with endpoint B going towards A).