document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1144805>Question 1144805</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Anna weighed \r<BR>\n" );
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document.write( "25pounds at the age of three; \r<BR>\n" );
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document.write( "at the age of five, she weighed 36 pounds. \r<BR>\n" );
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document.write( "Assume the relationship between age and weight is linear. \r<BR>\n" );
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document.write( "Let t be Anna’s age in years.\r<BR>\n" );
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document.write( "a) Find the linear equation relating weight to age.\r<BR>\n" );
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document.write( "b) What should Anna weigh when she is eight years of age\r<BR>\n" );
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document.write( "c) y−intercept:  (      ,         ).  Verbally interpret.\r<BR>\n" );
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document.write( "d) Slope = ________.  Verbally interpret.\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #766007 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=766007\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Anna weighed<BR>\n" );
document.write( "25pounds at the age of three;<BR>\n" );
document.write( "at the age of five, she weighed 36 pounds.<BR>\n" );
document.write( "Assume the relationship between age and weight is linear.<BR>\n" );
document.write( "Let t be Anna’s age in years.<BR>\n" );
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document.write( "let y = her weight at t yrs<BR>\n" );
document.write( "assign the given values at follows:<BR>\n" );
document.write( "t1 = 3; y1 = 25<BR>\n" );
document.write( "t2 = 5; y2 = 36<BR>\n" );
document.write( "Find the slope; m = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28%2836-25%29%29%2F%28%285-3%29%29 ALIGN=MIDDLE  ALT=\"%28%2836-25%29%29%2F%28%285-3%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=11%2F2 ALIGN=MIDDLE  ALT=\"11%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" > is the slope or<BR>\n" );
document.write( "m = 5.5<BR>\n" );
document.write( "a) Find the linear equation relating weight to age.<BR>\n" );
document.write( "Using the point/slope equation<BR>\n" );
document.write( "y - 25 = 5.5(t - 3)<BR>\n" );
document.write( "y - 25 = 5.5t - 16.5<BR>\n" );
document.write( "y = 5.5t - 16.5 + 25<BR>\n" );
document.write( "y = 5.5t + 8.5 is the equation<BR>\n" );
document.write( "b) What should Anna weigh when she is eight years of age<BR>\n" );
document.write( "y = 5.5(8) + 8.5<BR>\n" );
document.write( "y = 44 + 8.5<BR>\n" );
document.write( "y = 52.5 lb at age 8 <BR>\n" );
document.write( "c) y−intercept: ( , ). Verbally interpret.<BR>\n" );
document.write( "When she was born, t=0, she weighs 8.5 lb<BR>\n" );
document.write( "d) Slope = ________. Verbally interpret.<BR>\n" );
document.write( "m = 5.5 or 11/2, she gains 11 lb every 2 yrs<BR>\n" );
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