document.write( "Question 53932: Can someone just check this to see if I am correct?? Answer in slope int. form.
\n" ); document.write( "A line through the points (-3,4) and (-4,6)
\n" ); document.write( "first I found the slope (I THINK)
\n" ); document.write( "6-4/-4+3= slope of -2
\n" ); document.write( "y-4=-2(x+3)
\n" ); document.write( "y-4=-2x-6
\n" ); document.write( "y=-2x-6+4
\n" ); document.write( "y=-2x-2 \n" ); document.write( "

Algebra.Com's Answer #36178 by AnlytcPhil(1810) $\"\"$ $\"About$

You can put this solution on YOUR website!

Can someone just check this to see if I am correct?? \r\n" );
document.write( "Answer in slope int. form. A line through the points\r\n" );
document.write( "(-3,4) and (-4,6)\r\n" );
document.write( "first I found the slope (I THINK)\r\n" );
document.write( "\r\n" );
document.write( "(6-4)/(-4+3) = slope of -2\r\n" );
document.write( "y-4=-2(x+3)\r\n" );
document.write( "y-4=-2x-6\r\n" );
document.write( "y=-2x-6+4\r\n" );
document.write( "y=-2x-2\r\n" );
document.write( "\r\n" );
document.write( "Let's check to see if it's correct.\r\n" );
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document.write( "Substitute (x, y) = (-3,4) and see if that checks.  Then substitute\r\n" );
document.write( "(x, y) = (-4,6) to see if that also checks. If both check, then you\r\n" );
document.write( "have to be right:\r\n" );
document.write( "\r\n" );
document.write( "Substituting (x, y) = (-3,4)\r\n" );
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document.write( "y = -2x - 2\r\n" );
document.write( "4 = -2(-3) - 2\r\n" );
document.write( "4 = 6 - 2\r\n" );
document.write( "4 = 4\r\n" );
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document.write( "So one point checks. Let's check the other point\r\n" );
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document.write( "Substituting (x, y) = (-4,6)\r\n" );
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document.write( "y = -2x - 2\r\n" );
document.write( "6 = -2(-4) - 2\r\n" );
document.write( "6 = 8 - 2\r\n" );
document.write( "6 = 6\r\n" );
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document.write( "That checks too, so you are right.\r\n" );
document.write( "\r\n" );
document.write( "Edwin

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