document.write( "Question 84883: What is the eguation of the line with points(0,-4) and (4,0) \n" ); document.write( "

Algebra.Com's Answer #61207 by checkley75(3666) $\"\"$ $\"About$

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FIRST WE FIND THE SLOPE
\n" ); document.write( "(Y2-Y1)/(X2-X1)
\n" ); document.write( "(0+4)/(4-0)=4/4=1 FOR THE SLOPE.
\n" ); document.write( "NOW WE REPLACE X 7 Y IN THE LINE EQUATION [Y=mX+b] & SOLVE FOR (b) THE Y INTERCEPT. (WHICH WE ALREADY KNOW (0,-4)
\n" ); document.write( "-4=-1*0+b
\n" ); document.write( "-4=b WHICH IS THE Y INTERCEPT.
\n" ); document.write( "THUS THE EQUATION IS
\n" ); document.write( "Y=1*X-4 OR Y=X-4
\n" ); document.write( " $\"+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+y+=+x+-4%29+\"$ (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, y = x -4). \n" ); document.write( "

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