Question

The point Q(9, -1) is reflected across the y axis. Use arrow notation to describe the original point and its reflection
a) Q(9, -1) -> Q'(9,1)
b) Q(9, -1) -> Q(-9, 1)
c) Q(9 -1) -> Q(-9, -1)
d) Q(9 -1) -> Q(9, -1)

Answer 1

The answer is c. (-9,-1). I have attached the graph so you can see it.