Question

State the co-ordinates of the images of the following points under reflection in the origin:

(i) $(-1,-4)$

Answer 1

Given point: $(-1,-4)$

Reflection in the origin, $M_o(x,y)=(-x,-y)$

$\Rightarrow M_o(-1,-4)=(1,4)$

$\therefore$The co-ordinates of the image of the given point under reflection in the origin are $(1,4)$.