document.write( "Question 428225: The slope of the line that contains the points (4, 10) and (5, 13) is 3. Find the y-intercept \n" ); document.write( "

Algebra.Com's Answer #297699 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
You can express the equation as
\n" ); document.write( " $\"+y+=+mx+%2B+b+\"$
\n" ); document.write( " $\"+y+=+3x+%2B+b+\"$ (b is the y-intercept)
\n" ); document.write( "Just plug in one of the points
\n" ); document.write( "(4,10)
\n" ); document.write( " $\"10+=+3%2A4+%2B+b+\"$
\n" ); document.write( " $\"+b+=+10+-+12+\"$
\n" ); document.write( " $\"+b+=+-2+\"$ (answer)
\n" ); document.write( "Here's a plot:
\n" ); document.write( " $\"+graph%28+400%2C+400%2C+-5%2C+5%2C+-5%2C+5%2C+3x+-+2%29+\"$ \n" ); document.write( "

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