document.write( "Question 206627: If f is a linear function and f(0)=10 and f(10)=14, find f(5) and f(-5). \n" ); document.write( "
Algebra.Com's Answer #156222 by RAY100(1637)![]() ![]() ![]() You can put this solution on YOUR website! f(0) = x/2.5 +10 = 0+10 = 10,,,,ok \n" ); document.write( ". \n" ); document.write( "f(10) = x/2.5 +10 = 4 +10 =14,,,,ok \n" ); document.write( ". \n" ); document.write( "one solution is f(x) = x/2.5 +10 \n" ); document.write( ". \n" ); document.write( "f(5) = 5/2.5 +10 = 2 +10 = 12 \n" ); document.write( ". \n" ); document.write( "f(-5) = (-5)/2.5 +10= -2 +10 = 8 \n" ); document.write( ". \n" ); document.write( "to check, a rough sketch shows this to be a positive linear line, slope \n" ); document.write( ". \n" ); document.write( "(1/2.5) and y intercept at +10 \n" ); document.write( ". \n" ); document.write( " |