document.write( "Question 687393: How do you write an equation for the line that passes through (-4,-5) and the slope is undefined? \n" ); document.write( "

Algebra.Com's Answer #425146 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
The general form of the equation is
\n" ); document.write( " $\"+y+=+m%2Ax+%2B+b+\"$ where $\"+m+\"$ is the slope
\n" ); document.write( "given:
\n" ); document.write( "The line passes through (-4,-5)
\n" ); document.write( "The format is (x,y), so plug the point into the equation
\n" ); document.write( " $\"+-5+=+m%2A%28-4%29+%2B+b+\"$
\n" ); document.write( "Note that $\"+b+\"$ is the y-intercept, but if the slope is not
\n" ); document.write( "defined, then the y-intercept can be anywhere on y-axis
\n" ); document.write( " $\"+-5+=+-4m+%2B+b+\"$
\n" ); document.write( " $\"+b+=+4m+-+5+\"$
\n" ); document.write( "--------------
\n" ); document.write( "The general equation is:
\n" ); document.write( " $\"+y+=+m%2Ax+%2B+4m+-+5+\"$
\n" ); document.write( " $\"+y+=+m%2A%28+x+%2B+4+%29+-+5+\"$
\n" ); document.write( "check:
\n" ); document.write( "Does the line pass through (-4,-5 ) ?
\n" ); document.write( " $\"+-5+=+m%2A%28+-4+%2B+4+%29+-+5+\"$
\n" ); document.write( " $\"+-5+=+m%2A0+-+5+\"$
\n" ); document.write( " $\"+-5+=+-5+\"$
\n" ); document.write( "OK \n" ); document.write( "

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