document.write( "Question 1205757: Find the slope and y-intercept of the line. (If an answer does not exist, enter DNE.)
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document.write( "7x + 8y = 16 and draw graph \n" );
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Algebra.Com's Answer #842775 by math_tutor2020(3817)![]() ![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "Solve for y\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "7x + 8y = 16 \n" ); document.write( "8y = -7x + 16 \n" ); document.write( "y = -7x/8 + 16/8 \n" ); document.write( "y = (-7/8)x + 2\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Compare this to y = mx+b to find... \n" ); document.write( "m = -7/8 = slope \n" ); document.write( "b = 2 = y intercept\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "------------------------------\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "To graph this, plot the point (0,2) to represent the y intercept. \n" ); document.write( "Then move down 7 and right 8 due to the slope. This should have you go from (0,2) to (8,-5)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Plot the points (0,2) and (8,-5). Draw a straight line through them. \n" ); document.write( " \n" ); document.write( "Desmos is a handy graphing tool I recommend. Another useful graphing tool is GeoGebra. \n" ); document.write( "If you prefer a TI83 or similar, then stick to that option. \n" ); document.write( " \n" ); document.write( " |