document.write( "Question 317652: Find a formula for the line intersecting the graph of f(x) at x=1 and x=19 where
\n" ); document.write( "f(x)= 362/x^2+1
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Algebra.Com's Answer #227484 by Fombitz(32388) $\"\"$ $\"About$

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$\"f%281%29=362%2F%281%5E2%2B1%29=362%2F2=181\"$
\n" ); document.write( " $\"f%2819%29=362%2F%2819%5E2%2B1%29=362%2F362=1\"$
\n" ); document.write( "Linear functions have the form, $\"y=mx%2Bb\"$
\n" ); document.write( "Calculate the slope, $\"m\"$ ,using the two points, ( $\"1\"$ , $\"181\"$ ) and ( $\"19\"$ , $\"1\"$ )
\n" ); document.write( " $\"m=%28y2-y1%29%2F%28x2-x1%29=%281-181%29%2F%2819-1%29=-180%2F18=-10\"$
\n" ); document.write( "Then use either point to find $\"b\"$ .
\n" ); document.write( " $\"y=-10x%2Bb\"$
\n" ); document.write( " $\"1=-10%2819%29%2Bb\"$
\n" ); document.write( " $\"1=-190%2Bb\"$
\n" ); document.write( " $\"b=191\"$
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\n" ); document.write( " $\"highlight%28y=-10x%2B191%29\"$
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