document.write( "Question 442692: find a linear function,f, given f(9)= 12.5 and f(-9)=3.5 \n" ); document.write( "

Algebra.Com's Answer #305374 by swincher4391(1107) $\"\"$ $\"About$

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You are given two points: (9,12.5) (-9,3.5)\r
\n" ); document.write( "\n" ); document.write( "12.5 - 3.5
\n" ); document.write( "----------
\n" ); document.write( "9 + 9 \r
\n" ); document.write( "\n" ); document.write( "9/18 = 1/2\r
\n" ); document.write( "\n" ); document.write( " $\"y+-+12.5+=+expr%281%2F2%29%28x-9%29\"$
\n" ); document.write( " $\"y+-12.5+=+expr%281%2F2%29x+-+expr%289%2F2%29\"$
\n" ); document.write( " $\"y+=+expr%281%2F2%29x+-+expr%289%2F2%29+%2B+expr%2825%2F2%29\"$
\n" ); document.write( " $\"highlight%28y+=+expr%281%2F2%29x+%2B+8%29\"$ \r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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