document.write( "Question 70024: Ok, i have always told me kids they can come to me with any question on homework...im in over my head here. I dont even remember working on this stuff...
\n" ); document.write( "If u can just direct me with a few examples i should be able to figure it out...thank you for any n all help\r
\n" ); document.write( "\n" ); document.write( "example of questions:\r
\n" ); document.write( "\n" ); document.write( "find equation of the line passing through the given points...\r
\n" ); document.write( "\n" ); document.write( "(1,5)(2,7) possible answers r --- y=2/3x+3 or y=1/2x-4\r
\n" ); document.write( "\n" ); document.write( "huh? please help me
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Algebra.Com's Answer #49860 by tutorcecilia(2152)\"\" \"About 
You can put this solution on YOUR website!
(1,5)(2,7)
\n" ); document.write( "Use the formula for the slope of a line:
\n" ); document.write( "m=\"%28y1-y2%29%2F%28x1-x2%29%29\"
\n" ); document.write( "m=\"%285-7%29%2F%281-2%29=-2%2F-1=2%29\"[plug-in the values of the two points (1,5)and(2,7)]
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\n" ); document.write( "Next, use the slope-intercept formula of a line:
\n" ); document.write( "y=mx+b
\n" ); document.write( "y=any y value of the line
\n" ); document.write( "m=the slope of the line
\n" ); document.write( "x=any corresponding x value
\n" ); document.write( "b=the y-intercept (where the line crosses the y-axis)
\n" ); document.write( ".
\n" ); document.write( "y=mx+b [plug-in the values]
\n" ); document.write( "5=(2)(1)+b [plug-in the values of any one point plus and the value of the slope and solve for \"b\"]
\n" ); document.write( "5=2+b
\n" ); document.write( "5-2=2-2+b
\n" ); document.write( "3=b
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\n" ); document.write( "Since we are finding the slope-intercept equation of a line, all we need to plug-in is the slope and the y-intercept: m=2 and b=3
\n" ); document.write( "y=2x+3
\n" ); document.write( ".
\n" ); document.write( "Check by plug-in one of the points: Try (1,5)
\n" ); document.write( "y=2x+3
\n" ); document.write( "5=(2)(1)+3
\n" ); document.write( "5=2+3
\n" ); document.write( "5=5 [checks out]\r
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