document.write( "Question 980934: what is the slope and y-intercept for 3x+3y=63 \n" ); document.write( "
Algebra.Com's Answer #601972 by josgarithmetic(39620)\"\" \"About 
You can put this solution on YOUR website!
\"x%2By=21\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"y=-x%2B21\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "slope, -1
\n" ); document.write( "y-intercept, 21\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "---
\n" ); document.write( "A linear equation in standard form, but not simplified is given.
\n" ); document.write( "Multiply both sides by \"1%2F3\" simplifies into \"x%2By=21\".
\n" ); document.write( "If you solve this for y in terms of x, you use steps
\n" ); document.write( "\"x%2By-x=21-x\"
\n" ); document.write( "\"x-x%2By=-x%2B21\"
\n" ); document.write( "\"0%2By=-x%2B21\"
\n" ); document.write( "\"highlight_green%28y=-x%2B21%29\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "You must recognize that this is the slope-intercept form of the linear equation, and know what the parts of the equation mean.
\n" ); document.write( "y=mx+b is a model format for slope intercept form.
\n" ); document.write( "m, means slope, vertical change divided by horizontal change;
\n" ); document.write( "b, means vertical axis intercept, the y value for when x is 0.
\n" ); document.write( "
\n" );