Question

What is the image of (-9,0) after a reflection over the line y=x

Answer 1

Answer:

(0,-9)

Step-by-step explanation:

The image of a point $(x,y)$ over a line $y=x$ is given by the co-ordinate rule:

$(x,y)$ → $(y,x)$

So, when we reflect a point over the line $y=x$, the x co-ordinate and y co-ordinate change their places.

Here, $(x,y)$ is $(-9,0)$. So, from the above rule, after reflection over the line $y=x$, the image has the following co-ordinates:

$(0,-9)$