document.write( "Question 75154: Please help...Thanks!!
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document.write( "If a line contains the points (1,3), (2,6) and (3,9) determine and write the slope-intercept form of the equation, provide one additional point on this line in (x,y) form, and graph the function. \r
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Algebra.Com's Answer #53996 by checkley75(3666) ![]() You can put this solution on YOUR website! FIRST WE FIND THE SLOPE (Y2-Y1)/(X2-X1) \n" ); document.write( "(6-3)/(2-1) \n" ); document.write( "3/3=3 IS THE SLOPE. \n" ); document.write( "NOW USING THE LINE FORMULA AND ONE SET OF POINTS WE CAN FIND THE Y INTERCEPT. \n" ); document.write( "3=3*1+b \n" ); document.write( "3=3+b \n" ); document.write( "b=3-3 \n" ); document.write( "b=0 THUS THE EQUATION IS \n" ); document.write( "Y=3X \n" ); document.write( "SETTING Y=12 WE SOLVE FOR X \n" ); document.write( "12=3*X \n" ); document.write( "3X=12 \n" ); document.write( "X=12/3 \n" ); document.write( "X=4 OR (4,12) FOR THE ADDITIONAL POINT ON THIS LINE \n" ); document.write( " |