document.write( "Question 808844: The equation y=-90x + 1440 represents the time (in minutes) left after x games of a tournament.
\n" ); document.write( "1) Graph the equation
\n" ); document.write( "2) Interpret the x-intercept and slope.\r
\n" ); document.write( "\n" ); document.write( "Not sure how to answer questions one and two based on the equation given.
\n" ); document.write( "Diane
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Algebra.Com's Answer #487268 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
The minus sign in front of the \"+90x+\" means
\n" ); document.write( "that the line slopes from the upper left to
\n" ); document.write( "the lower right. Here's a plot:
\n" ); document.write( "\"+y+=+-90x+%2B+1440+\"
\n" ); document.write( "\"+graph%28+400%2C+400%2C+-10%2C+30%2C+-100%2C+1600%2C+-90x+%2B+1440+%29+\"
\n" ); document.write( "--------------------
\n" ); document.write( "The negative slope means that as the number of games, \"+x+\",
\n" ); document.write( "increases, the number of minutes remaining decreases.
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\n" ); document.write( "At the x-intercept, the number of minutes remaining is zero,
\n" ); document.write( "so all the games, \"+x+=+16+\", have been played, and
\n" ); document.write( "the tournament is over.
\n" ); document.write( "Note that \"+0+=+-90%2A16+%2B+1440+\", no minutes remaining.\r
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