document.write( "Question 1167309: tim did 10 lunges on day 1 and continued this doing 4 more lunges on each day.on day 7th he took a break and did nt do any day day.what is the equation for this? express it in the form y=ax(x+b)+c, where a,b and c are constants.x= no of days and y=no of lunges tim did \n" ); document.write( "
Algebra.Com's Answer #837725 by mananth(16946)\"\" \"About 
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From day 1 to day 6, Tim did 10 lunges on the first day and added 4 more lunges each day. So, on day x \r
\n" ); document.write( "\n" ); document.write( "y = 4(x-1) + 10\r
\n" ); document.write( "\n" ); document.write( "Simplifying this equation, we get:\r
\n" ); document.write( "\n" ); document.write( "y = 4x + 6\r
\n" ); document.write( "\n" ); document.write( "day 7, y would be 0.\r
\n" ); document.write( "\n" ); document.write( " the equation for the number of lunges Tim did for 7 days will be\r
\n" ); document.write( "\n" ); document.write( "y = 4x + 6(x-1)(x<7) + 0 (Day 7 0)\r
\n" ); document.write( "\n" ); document.write( "Simplify\r
\n" ); document.write( "\n" ); document.write( "y = 4x - 18 (x<7)
\n" ); document.write( "y = 4x(x-7) - 18
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