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## High school geometry

### Course: High school geometry>Unit 1

Lesson 3: Translations

# Translation challenge problem

A translation acting on the coordinate plane takes the point (-169,434) to point (-203, -68). What are the coordinates of the image of point (31, -529) under this translation?

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Created by Sal Khan.

## Want to join the conversation?

• I really don't understand this video....HELP!
• First you need to find out the translation. Then apply it to the point. If you think about it it's just an extended version of the previous problems.
• I don't get translations and how are we going to use this in life
• Well, every time you move, you translate to a different space. When you drive to school, you translate (ex, a block to the right, and three blocks ahead).
• at , why does he not talk?
• Actually, if you listen closely, he's taking a breathe and preparing to talk.
• do you just subtract everything or are you supposed to add and then subtract
• You could add negatives or subtract positives. For example, -3+2 is equal to 2-3.
• I can not understand it:
why 31-34,-529-502?
This is my thinking:31-(-34)=31+34=65
-529-(-502)=-529+502=-27
The number 34 and 502 are negitive,right?
• The -34 and -502 are the rules for the translation. Whatever pint you're translating, you add -34 to the x-coordinate and -502 to the y-coordinate. Subtracting instead of adding would give you the opposite effect, and translate the point up and to the right instead of down and to the left.
• I get this
• Why can't the numbers be negative?
• should -529 - - 502 become +502 ?