document.write( "Question 376109: find the angles between the lines
\n" ); document.write( "A, x+2y=2 and 2x+4y=4
\n" ); document.write( "b,x+y=5 and x-y=4
\n" ); document.write( "c, x+2y=2 and 2x+y=3
\n" ); document.write( "2 find the distance between the lines
\n" ); document.write( "a,3x+2y=5 and -3x-2y=6
\n" ); document.write( "b, 5y=x and y=5x
\n" ); document.write( " \n" ); document.write( "

Algebra.Com's Answer #267595 by Alan3354(69443) $\"\"$ $\"About$

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find the angles between the lines
\n" ); document.write( "A, x+2y=2 and 2x+4y=4
\n" ); document.write( "That's the same line. The 2nd eqn is 2x the 1st.
\n" ); document.write( "-------------
\n" ); document.write( "b,x+y=5 and x-y=4
\n" ); document.write( "The 2 lines are parallel.
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\n" ); document.write( "c, x+2y=2 and 2x+y=3
\n" ); document.write( "x+2y=2 --> m = -1/2: arctan(-1/2) = -26.565º with the x-axis
\n" ); document.write( "2x+y=3 --> m = -2: arctan(-2) = -63.4349º with the x-axis
\n" ); document.write( "36.7º between the 2 lines
\n" ); document.write( "--------------------------
\n" ); document.write( "2 find the distance between the lines
\n" ); document.write( "a,3x+2y=5 and -3x-2y=6
\n" ); document.write( "b, 5y=x and y=5x
\n" ); document.write( " \n" ); document.write( "

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