document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=174230>Question 174230</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A hockey puck leaves the blade of a hockey stick, bounces off a wall, and travels in a new direction.\r<BR>\n" );
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document.write( "a) Write and equation that models the path of the ordered pairs of (-4,0) and (0,8).\r<BR>\n" );
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document.write( "b) Write and equation that models the path of the ordered pairs of (0,8) and (-4,16).\r<BR>\n" );
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document.write( "c) Does the path of the puck form a right angle? Explain. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #129171 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=129171\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a) Write and equation that models the path of the ordered pairs of (-4,0) and (0,8).<BR>\n" );
document.write( "slope = (8-0)/(0--4) = 2<BR>\n" );
document.write( "intercept: Since f(0) = 8,8 is the intercept<BR>\n" );
document.write( "Equation:<BR>\n" );
document.write( "y = 2x + 8<BR>\n" );
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document.write( "b) Write and equation that models the path of the ordered pairs of (0,8) and (-4,16).<BR>\n" );
document.write( "slope = (16-8)/(-4-0) = 8/-4 = -2<BR>\n" );
document.write( "intercept: since f(0) = 8, the intercept is .<BR>\n" );
document.write( "Equation:<BR>\n" );
document.write( "y = -2x+8<BR>\n" );
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document.write( "c) Does the path of the puck form a right angle? Explain.<BR>\n" );
document.write( "No, because the product of the slopes is not -1.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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