document.write( "Question 28231: The problem gives a chart of numbers with a difference of the same number- a pattern.ie. 14-1,12-2,10-3,8-4,etc. The first numbers are variable Y, and the 2nd numbers are var.X, ie.14=Y and 1=X. HOw do I find a formula for this? \n" ); document.write( "
Algebra.Com's Answer #15372 by venugopalramana(3286)\"\" \"About 
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The problem gives a chart of numbers with a difference of the same number- a pattern.ie. 14-1,12-2,10-3,8-4,etc. The first numbers are variable Y, and the 2nd numbers are var.X, ie.14=Y and 1=X. HOw do I find a formula for this?
\n" ); document.write( "IN SUCH PROBLEMS LOOK FOR A PATTERN...AS YOU POINTED OUT IT IS HAVING Y-X PATTERN...OK...
\n" ); document.write( "NOW LOOK AT NUMERS IN Y POSITION...THEY ARE
\n" ); document.write( "14,12,10,8 ETC....THEY ARE DECRESING BY 2 AT EVERY STEP STARTING FROM ..IT IS CALLED ARITHMATIC PROGRESSION WITH FIRST TERM AS 14 AND COMMON DIFFERENCE AS -2
\n" ); document.write( "SO ITS GENERAL TERM IS 14+(N-1)(-2)=14-2N+2=16-2N...YOU CAN CHECK THIS BY SUBSTITUTING N=1,2,3 ETC...TO GET 14,12,10 ETC...
\n" ); document.write( "SIMILARLY FOR NUMBERS IN X POSITION THE GENERAL TERM IS N...SO...
\n" ); document.write( " Y-X ...IS.....16-2N-N=16-3N
\n" ); document.write( "SO GENERAL FORMULA FOR N TH. TERM IS 16-3N.....LET US CHECK....
\n" ); document.write( "N=1............13
\n" ); document.write( "N=2............10
\n" ); document.write( "N=3............7...ETC...
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