document.write( "Question 175962This question is from textbook
\n" ); document.write( ": Are the following two graphs in a family? If so,explain why. y=-2x+3 and y= 2x+3 \n" ); document.write( "
Algebra.Com's Answer #131080 by checkley75(3666)\"\" \"About 
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y=-2x+3
\n" ); document.write( "y= 2x+3
\n" ); document.write( "\"+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+-2x+%2B3%2C+2x+%2B3%29+\" (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, of TWO functions -2x +3 and 2x +3).
\n" ); document.write( "These 2 lines are perpendicular because the slopes are negative recipricals of the other.
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