36.7k views
5 votes
An image point has coordinates B'(7-4). Find the coordinates of its pre-image if the translation used was (x + 4, y + 5).B(11, 1)B(3,1)B(3,-9)B(11,-9)

1 Answer

1 vote

For this problem we know that the image point has a coordinate sof:


B=(7,-4)

And we know that the translation used was


(x+4,y+5)

And for this case we can do this:


x+4=7\rightarrow x=7-4=3
y+5=-4\rightarrow y=-4-5=-9

And then the best solution for this case would be:

B(3,-9)

User Antoan Milkov
by
6.2k points