document.write( "Question 853197: I need help on this question....\r
\n" ); document.write( "\n" ); document.write( "each setoff coordinates below are generated by a linear rule. for each set of coordinates, write an equation to describe the rule.
\n" ); document.write( "{-1,-7}{0,-3}{1,1}{2,5}{4,13}{5,17} \n" ); document.write( "

Algebra.Com's Answer #513994 by fcabanski(1391) $\"\"$ $\"About$

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A liner rule is of the form y = x+a. The first coordinate in the pair is x. What do you have to add or subtract to/from it to get the second coordinate, which is y?

\n" ); document.write( "(-1,-7) y = x + a == -7 = -1 + a

\n" ); document.write( "-6 = a. So the equation is y = x -6

\n" ); document.write( "(0,-3) y = x + a == -3 = 0 + a == -3 = a. The equation is y = x - 3

\n" ); document.write( "(1,1) There is no difference so y=x

\n" ); document.write( "(2,5) The difference is 3. y = x+3

\n" ); document.write( "(4.13) The difference is 9. y=x+9

\n" ); document.write( "(5,17) y=x+12 \n" ); document.write( "

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