document.write( "Question 73996: the sum of the ages of the father has a slope of 3 and passes through the point (3,1). find the solution. \n" ); document.write( "

Algebra.Com's Answer #53047 by checkley75(3666) $\"\"$ $\"About$

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WITH A S;OPE(m) OF 3 AND PASSING THROUGH (3,1) WE NEED TO FIND THE Y INTERCEPT.
\n" ); document.write( "THUS WE SUBSTITUTE 3 FOR m AND THE POINTS (3,1 ) FOR X & Y VALUES RESPECTIVELY:
\n" ); document.write( "1=3*3+b
\n" ); document.write( "b=1-9
\n" ); document.write( "b=-8
\n" ); document.write( "THUS THE LINE FORMULA IS:
\n" ); document.write( "Y=3X-8
\n" ); document.write( " $\"+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+y+=+3x+-8%29+\"$ (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, y = 3x -8). \n" ); document.write( "

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