Given:
A point is reflected across the y-axis. The reflected point is (3.5,6).
Jimmy says the original point is (3.5,-6).
To find:
Whether Jimmy's statement true or false
Solution:
If a point is reflected across the y-axis, then y-coordinate remains same but change the sign of x-coordinate.
[tex](x,y)\to (-x,y)[/tex]
If the reflected point is (3.5,6), then the original point must be (-3.5,6), which is not equal to (3.5,-6).
Therefore, Jimmy's statement is false.
