document.write( "Question 873332: Hi, I am trying to find the function rule for the following table: x: 2, 4, 6 y: 1, 0, -1. I know that it is x+2 and that the y's are decreasing by 1 each time, but I'm having a hard time finding a function rule that works for each x, y pair. \n" ); document.write( "
Algebra.Com's Answer #526796 by josgarithmetic(39620)\"\" \"About 
You can put this solution on YOUR website!
The slope looks like -1/2, and the x-intercept is 4. Use any form of linear equation that you want to determine corresponding constant value. \r
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\n" ); document.write( "\n" ); document.write( "USING SLOPE-INTERCEPT FORM
\n" ); document.write( "\"y=mx%2Bb\"
\n" ); document.write( "\"b=y-mx\"
\n" ); document.write( "\"b=0-%28-1%2F2%294\"
\n" ); document.write( "\"b=%2B2\"
\n" ); document.write( "Equation: \"highlight%28y=-%281%2F2%29x%2B2%29\", which is not showing exactly \"x+2\".\r
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\n" ); document.write( "\n" ); document.write( "USING POINT-SLOPE FORM
\n" ); document.write( "Any of the given points will work, but x-intercept will be convenient;
\n" ); document.write( "\"y-0=-%281%2F2%29%28x-4%29\"
\n" ); document.write( "\"highlight%28y=-x%2F2%2B2%29\", which is equivalent to the other equation found.
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