Reflection of the point (1,−9) in the origin is (−1,a). The value of a is ___
Reflection of the point (1,−9) in the origin is (−1,9).
Therefore, a=9.
The reflection of point (-7, -9) through the origin gives us___
Reflection of the point (−2,9) in the origin is ___________
The image of the point (-7, -9) when reflected in the origin is___