document.write( "Question 189110This question is from textbook
\n" ); document.write( ": I have a problem where I have to write an equation in function notation using this slope -5/8 (3,2)
\n" ); document.write( "I know I need to use the y-y=m(x-x) and I get F(x)=-5/8x +17/8, but teh book has -5/8x+31/8. Where is teh 31 coming from? \n" ); document.write( "

Algebra.Com's Answer #141849 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Sometimes I do it this way:
\n" ); document.write( " $\"y+=+mx+%2B+b\"$
\n" ); document.write( " $\"m+=+-%285%2F8%29\"$
\n" ); document.write( "The point (3,2) is given, so
\n" ); document.write( " $\"2+=+-%285%2F8%29%2A3+%2B+b\"$
\n" ); document.write( " $\"2%2A8+=+-15+%2B+8b\"$
\n" ); document.write( " $\"8b+=+16+%2B+15\"$
\n" ); document.write( " $\"b+=+31%2F8\"$
\n" ); document.write( "So the equation is:
\n" ); document.write( " $\"F%28x%29+=+-%285%2F8%29%2Ax+%2B+31%2F8\"$
\n" ); document.write( "-----------------------------
\n" ); document.write( "The other way is:
\n" ); document.write( " $\"y+-+y%5B1%5D+=+m%2A%28x+-+x%5B1%5D%29\"$
\n" ); document.write( " $\"y+-+2+=+-5%2F8%2A%28x+-+3%29\"$
\n" ); document.write( " $\"y+=+-%285%2F8%29%2Ax+%2B+15%2F8+%2B+2\"$
\n" ); document.write( " $\"y+=+-%285%2F8%29%2Ax+%2B+15%2F8+%2B+16%2F8\"$
\n" ); document.write( " $\"y+=+-%285%2F8%29%2Ax+%2B+31%2F8\"$
\n" ); document.write( "And, of course, $\"y+=+F%28x%29\"$ \n" ); document.write( "

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