On a coordinate grid, point A is located in the first quadrant. Point B is located at (- 1/2, 1) at Point C is a reflection of point B across the y-axis. Which graph shows these three points?

ANSWER
Third option
EXPLANATION
We want to identify the graph that correctly describes the points.
The first quadrant on a coordinate grid is the quadrant located in the top right corner of the coordinate grid.
Also, we have that point B is located at (-1/2, 1) and C is a reflection of point B across the y-axis.
When a point is reflected across the y-axis, it changes as follows:
[tex](x,y)\to(-x,y)[/tex]This implies that point C is located at:
[tex](\frac{1}{2},1)[/tex]Therefore, the graph that correctly describes the points is the third option.