document.write( "Question 1130957: Suppose your dog weighted 2.7 pounds at birth and weighed 28 pounds one year
\n" ); document.write( "later.
\n" ); document.write( "a. Based on these two data points, find a linear function that describes how weight varies with age.
\n" ); document.write( "b. Use the equation (your answer to part a) to predict your dog’s weight at 5 and 11 years of age. \n" ); document.write( "
Algebra.Com's Answer #747612 by ankor@dixie-net.com(22740)\"\" \"About 
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Suppose your dog weighted 2.7 pounds at birth and weighed 28 pounds one year
\n" ); document.write( "later.
\n" ); document.write( "a. Based on these two data points, find a linear function that describes how weight varies with age.
\n" ); document.write( "let x = the age
\n" ); document.write( "f(x) = weight
\n" ); document.write( "f(x) = ax + 2.7
\n" ); document.write( "x=1, f(x) = 28
\n" ); document.write( "1a + 2.7 = 28
\n" ); document.write( "a = 28-2.7
\n" ); document.write( "a = 25.3
\n" ); document.write( "f(x) = 25.3x + 2.7
\n" ); document.write( ":
\n" ); document.write( "b. Use the equation (your answer to part a) to predict your dog’s weight at 5 yrs
\n" ); document.write( "f(x) = 25.3(5) + 2.7
\n" ); document.write( "f(x) = 126.5 + 2.7
\n" ); document.write( "f(x) = 129 lb
\n" ); document.write( ";
\n" ); document.write( "and 11 yrs old
\n" ); document.write( "f(x) = 25.3(11) + 2.7
\n" ); document.write( "f(x) = 278.3 + 2.7
\n" ); document.write( "f(x) = 281 lb
\n" ); document.write( ":
\n" ); document.write( "Obviously not of the real world, animal growth is certainly not linear \n" ); document.write( "
\n" );