document.write( "Question 345696: how do you solve this equation if its asking for the linear function.
\n" ); document.write( "* f(x), where f(4)=1 and f(1)=4 \n" ); document.write( "

Algebra.Com's Answer #247232 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!
Hi,
\n" ); document.write( "Using point-slope form of line
\n" ); document.write( " $\"%28y%5B2%5D+-+y%5B1%5D%29%2F%28x%5B2%5D+-+x%5B1%5D%29+=+m\"$
\n" ); document.write( "Questions states the following points
\n" ); document.write( "(4,1)& (1,4)
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\n" ); document.write( " $\"%281+-+4%29%2F%284+-1%29=+m\"$
\n" ); document.write( ".
\n" ); document.write( " $\"-1+=+m\"$
\n" ); document.write( ".
\n" ); document.write( "using slope-intercept form
\n" ); document.write( "y = mx + b where be in the y-intecept
\n" ); document.write( ".
\n" ); document.write( "substituting (4,1) values for ex.
\n" ); document.write( "1 = -1(4) + b
\n" ); document.write( "b = 5
\n" ); document.write( ".
\n" ); document.write( "f(x) = -x + 5
\n" ); document.write( ".
\n" ); document.write( "Check your answer:
\n" ); document.write( "f(1) = 4 and f(4) = 1 \n" ); document.write( "

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