document.write( "Question 1142809: Find a single translation that has the same effect as each composition of translations. (x, y) → (x - 7, y + 8) followed by (x, y) → (x + 5, y - 6).\r
\n" ); document.write( "\n" ); document.write( "1. (x,y)→(x - 1,y - 1)
\n" ); document.write( "2. (x,y)→(x - 13,y - 14)
\n" ); document.write( "3. (x,y)→(x - 12,y - 14)
\n" ); document.write( "4. (x,y)→(x - 2,y+2)
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Algebra.Com's Answer #763544 by greenestamps(13200)\"\" \"About 
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\n" ); document.write( "Both transformations are simply rigid translations in the plane.

\n" ); document.write( "The first shifts left by 7 and the second shifts right by 5; the result is a shift left by 2.

\n" ); document.write( "The first shifts up by 8 and the second shifts down by 6; the result is a shift up by 2.

\n" ); document.write( "So the combination gives the translation \"left 2, up 2\".

\n" ); document.write( "Which answer choice is that?
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