document.write( "Question 867688: Roger buys and plants a tree sapling measured at 3 feet tall. After 1 year of growth, the tree is 4.5 feet tall. After 3 years of growth the tree is 7.5 feet tall. If the growth of the tree were place on a graph, what would be the slope value? \r
\n" ); document.write( "\n" ); document.write( "I am given options
\n" ); document.write( "A. initial planting height of 3 feet.
\n" ); document.write( "B. 4.5 feet after 1 year of growth.
\n" ); document.write( "C. Beginnings height of 0 feet.
\n" ); document.write( "D. 1.5 feet per year of growth. I think it is D, but I am not sure. I think it would look like y= mx+b, where b would represent Y. I would appreciate some guidance. doing word problems is a major weakness for me. Thank you for your help
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Algebra.Com's Answer #527292 by richwmiller(17219)\"\" \"About 
You can put this solution on YOUR website!
You have several points.
\n" ); document.write( "0,3 which tells us the y intercept
\n" ); document.write( "b is y when x=0
\n" ); document.write( "y=mx+3
\n" ); document.write( "3, 7.5
\n" ); document.write( "1,4.5
\n" ); document.write( "(7.5-4.5)/(3-1)
\n" ); document.write( "3/2=1.5
\n" ); document.write( "So D is correct\r
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