document.write( "Question 244189: My son has an assignment from a substitute that apparently did not explain the homework sheet to the students. \r
\n" ); document.write( "\n" ); document.write( "Question: Is the relationship shown by the data linear? If it is, model the data with an equation.\r
\n" ); document.write( "\n" ); document.write( " X Y
\n" ); document.write( " 2 3
\n" ); document.write( " 3 7
\n" ); document.write( " 4 11
\n" ); document.write( " 5 15 \n" ); document.write( "

Algebra.Com's Answer #178718 by checkley77(12844) $\"\"$ $\"About$

You can put this solution on YOUR website!
X Y
\n" ); document.write( " 2 3
\n" ); document.write( " 3 7
\n" ); document.write( " 4 11
\n" ); document.write( " 5 15
\n" ); document.write( "SLOPE=(7-3)/(3-2)=4/1=4
\n" ); document.write( "SLOPE=(11-7)/(4-3)=4/1=4
\n" ); document.write( "SLOPE=(15-11)/(5-4)=4/1=4
\n" ); document.write( "3=2*4+b
\n" ); document.write( "3=8+b
\n" ); document.write( "b=3-8
\n" ); document.write( "b=-5
\n" ); document.write( "Y=4X-5 ans. for the line equation.
\n" ); document.write( " $\"+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+4x+-5%29+\"$ (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, 4x -5). \n" ); document.write( "

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