document.write( "Question 790830: I am totally lost on how to do this. Any help would be appreciated:)\r
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\n" ); document.write( "\n" ); document.write( "Write an equation for a linear function whose graph has the given characteristics.
\n" ); document.write( "Passes through (−2, 8) and (2, −10)
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Algebra.Com's Answer #479301 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Use the general point-slope formula
\n" ); document.write( "You are given:
\n" ); document.write( "( x1,y1) = ( -2,8 )
\n" ); document.write( "(x2,y2) = ( 2, -10 )
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\n" ); document.write( "( y2 - y1 ) / ( x2 - x1 ) = ( y - y1 ) / ( x - x1 )
\n" ); document.write( " $\"+%28+-10+-+8+%29+%2F+%28+2+-%28-2%29+%29+=+%28+y+-+8+%29+%2F+%28+x+-%28-2%29+%29+\"$
\n" ); document.write( " $\"+-18+%2F+4+=+%28+y+-+8+%29+%2F+%28+x+%2B+2+%29+\"$
\n" ); document.write( "Multiply both sides by $\"+4%2A%28+x%2B2+%29+\"$
\n" ); document.write( " $\"+-18%2A%28+x%2B2+%29+=+4%2A%28+y+-+8+%29+\"$
\n" ); document.write( " $\"+-9%2A%28+x%2B2+%29+=+2%2A%28+y+-+8+%29+\"$
\n" ); document.write( " $\"+-9x+-+18+=+2y+-+16+\"$
\n" ); document.write( " $\"+2y+=+-9x+-+2+\"$
\n" ); document.write( " $\"+y+=+%28-9%2F2%29%2Ax+-+1+\"$
\n" ); document.write( "-------------------
\n" ); document.write( "check for given points:
\n" ); document.write( "(-2,8)
\n" ); document.write( " $\"+8+=+%28-9%2F2%29%2A%28-2%29+-+1+\"$
\n" ); document.write( " $\"+8+=+9+-+1+\"$
\n" ); document.write( " $\"+8+=+8+\"$
\n" ); document.write( "and
\n" ); document.write( "(2,-10)
\n" ); document.write( " $\"+-10+=+%28-9%2F2%29%2A2+-+1+\"$
\n" ); document.write( " $\"+-10+=+-9+-+1+\"$
\n" ); document.write( " $\"+-10+=+-10+\"$
\n" ); document.write( "OK\r
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