document.write( "Question 661215: (FLIGHT CONDITIONS) In stable air, the air temperature drops about 5 °(F) for each 1,000-foot rise in altitude.\r
\n" ); document.write( "\n" ); document.write( "(A) If the temperature at sea level is 100 °F and a commercial pilot reports a temperature of -30 °F at 26000 feet, write a linear equation that expresses temperature T in terms of altitude A. \n" ); document.write( "
Algebra.Com's Answer #411562 by lwsshak3(11628)\"\" \"About 
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(FLIGHT CONDITIONS) In stable air, the air temperature drops about 5 °(F) for each 1,000-foot rise in altitude.
\n" ); document.write( "(A) If the temperature at sea level is 100 °F and a commercial pilot reports a temperature of -30 °F at 26000 feet, write a linear equation that expresses temperature T in terms of altitude A.
\n" ); document.write( "**
\n" ); document.write( "linear equation takes the form: y=mx+b, m=slope, b=y-intercept
\n" ); document.write( "For given problem:
\n" ); document.write( "slope=-5º/1000 ft
\n" ); document.write( "equation:
\n" ); document.write( "T=-5A/1000+b
\n" ); document.write( "using coordinates (26000 ft,-30º) of given condition to solve for b
\n" ); document.write( "-30=-5*26000/1000+b
\n" ); document.write( "-30=-130+b
\n" ); document.write( "b=100
\n" ); document.write( "equation:
\n" ); document.write( "T=-5A/1000+100
\n" ); document.write( " \n" ); document.write( "
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