document.write( "Question 684137: A line passes through the points (-1,5) and (3,k) and has y-intercept 7. Find the value of k. \n" ); document.write( "

Algebra.Com's Answer #423945 by ReadingBoosters(3246) $\"\"$ $\"About$

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Use (-1, 5) and y intecept 7, which is (0, 7) to find slope
\n" ); document.write( " $\"%285-7%29%2F%28-1-0%29+=+-2%2F-1+=+2\"$
\n" ); document.write( "...
\n" ); document.write( "Use (-1, 5) and (3, k) and slope to solve for 5
\n" ); document.write( " $\"%285-k%29%2F%28-1-3%29+=+2\"$
\n" ); document.write( "...
\n" ); document.write( "5-k = 2(-4)
\n" ); document.write( "5 - k = -8
\n" ); document.write( "-k = -8 - 5
\n" ); document.write( "-k = -13
\n" ); document.write( " $\"highlight_green%28k+=+13%29\"$ \r
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