document.write( "Question 175725: My question says you had 132 dolars after 6 weeks and 240 dolarsv after 12 weeks. you saved the same amount each week. do you think that you can generilize this problem situation by using a linear equation? use complete sentences and explain yor reasoning. \n" ); document.write( "
Algebra.Com's Answer #130819 by Mathtut(3670)![]() ![]() ![]() You can put this solution on YOUR website! lets call x value, weeks and the y value, amount of dollars saved \n" ); document.write( ": \n" ); document.write( "so you points are (6,132) and (12,240) we have two points so lets find the slope \n" ); document.write( ": \n" ); document.write( "240-132/12-6=108/6=54/3=18 ...so we have a m=slope=18. now lets use the point slope formula of y-k=m(x-h) where m is the slope and (h,k) is any point on the line \n" ); document.write( ": \n" ); document.write( "y-132=18(x-6) \n" ); document.write( ": \n" ); document.write( "y-132=18x-108 \n" ); document.write( ": \n" ); document.write( "y=18x+24 \n" ); document.write( ": \n" ); document.write( "so as you can see we have a linear equation(why because we had two points to begin with. If we had only one 1 point we wouldnt have got this to work.\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |