Question

What are the coordinates of the point for which the mirror image in y-axis is (-2,-4)?​

Answer 1

Answer:

(2,-4) is right answer

Answer 2

Answer:

Consider Y axis to be a plane mirror.

X coordinate (abscissa) = Distance from Y axis

Y coordinate (ordinate) = Distance from X axis

This plane mirror inverts the positive abscissa into negative abscissa of SAME MAGNITUDE but ordinate remains same.

Also when we see ourselves in a plane mirror we see a LATERALLY INVERTED image not an UPSIDE DOWN image

Therefore required answer is (-2,-4)

Short trick --- The axis which becomes the plane mirror its coordinate remains same whereas he other one changes .

Step-by-step explanation:

hoper it helps :)