document.write( "Question 185956: Could someone please help me find the equation of the line that goes through the points (-4,2) and (-3,-7). I am terrible at graphing and equations and in need of help. Thanks for your help in advance. \n" ); document.write( "

Algebra.Com's Answer #139429 by stanbon(75887) $\"\"$ $\"About$

You can put this solution on YOUR website!
find the equation of the line that goes through the points (-4,2) and (-3,-7).
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\n" ); document.write( "Form: y = mx + b ; you need to find \"m\" and \"b\".
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\n" ); document.write( "m = slope = (-7-2)/(-3--4) = -9/1 = -9
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\n" ); document.write( "You now know m and you know y = 2 when x=-4 ;so solve for \"b\":
\n" ); document.write( "2 = -9*-4 + b
\n" ); document.write( "b = 2-36
\n" ); document.write( "b = -34
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\n" ); document.write( "Equation:
\n" ); document.write( "y = -9x - 34
\n" ); document.write( " $\"graph%28400%2C300%2C-10%2C10%2C-50%2C50%2C-9x-34%29\"$
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "

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