document.write( "Question 842425: Find a number t such that the line passing through the two points has slope -3.
\n" ); document.write( "(5, t); (-5, 5) \n" ); document.write( "
Algebra.Com's Answer #507682 by ankor@dixie-net.com(22740)\"\" \"About 
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Find a number t such that the line passing through the two points has slope -3.
\n" ); document.write( "(5, t); (-5, 5)
\n" ); document.write( ":
\n" ); document.write( "Use the slope formula m = \"%28y2-y1%29%2F%28x2-x1%29\"
\n" ); document.write( "where
\n" ); document.write( "m = -3
\n" ); document.write( "x1=5 y1=t
\n" ); document.write( "x2=-5; y2=5
\n" ); document.write( ":
\n" ); document.write( "\"%285-t%29%2F%28-5-5%29\" = -3
\n" ); document.write( "\"%285-t%29%2F%28-10%29\" = -3
\n" ); document.write( "5 - t = -3 * -10
\n" ); document.write( "5 - t = 30
\n" ); document.write( "-t = 30 - 5
\n" ); document.write( "-t = 25
\n" ); document.write( "t = -25
\n" ); document.write( ":
\n" ); document.write( "Find the equation using y - y1 = m(x-x1)
\n" ); document.write( "y - (-25) = -3(x-5)
\n" ); document.write( "y + 25 = -3x + 15
\n" ); document.write( "y = -3x + 15 - 25
\n" ); document.write( "y = -3x - 10
\n" ); document.write( "You can check this yourself, using the given coordinates for x in the equation \n" ); document.write( "
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