document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=818144>Question 818144</A>: <I><SPAN STYLE=\"word-break: break-all;\"> One question i have is to convert from polar to rectangular\r<BR>\n" );
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document.write( "the polar equation is r = 100 I have to convert to rectangular equation. \r<BR>\n" );
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document.write( "the answer is suppose to be is x^2+y^2 = 10000<BR>\n" );
document.write( "how did the book get this answer. thank you for your help </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #492396 by </B><A HREF=/tutors/aboutme.mpl?userid=TimothyLamb><B>TimothyLamb(4379)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=TimothyLamb><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/cgi-bin/show-face.mpl?user=TimothyLamb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=492396\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the problem statement is incomplete. <BR>\n" );
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document.write( "r = 100 is only one dimension (the radius of a polar point), we also need to know the second dimension, the polar angle of the point or points.<BR>\n" );
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document.write( "in this case, because the answer is the equation of a circle, the polar angle is actually the infinite set of all angles between 0 and 360 (polar).<BR>\n" );
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document.write( "the general equation for a circle in rectangular coordinates is:<BR>\n" );
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document.write( "(x-a)^2 + (y-b)^2 = r^2<BR>\n" );
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document.write( "where (a,b) is the center of the circle.<BR>\n" );
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document.write( "since the center is not given in the problem statement, let's place the circle at (0,0)<BR>\n" );
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document.write( "(x-0)^2 + (y-0)^2 = 100*100<BR>\n" );
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document.write( "answer:<BR>\n" );
document.write( "x^2 + y^2 = 10000<BR>\n" );
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document.write( "Solve and graph linear equations:<BR>\n" );
document.write( "https://sooeet.com/math/linear-equation-solver.php<BR>\n" );
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document.write( "Solve quadratic equations, quadratic formula:<BR>\n" );
document.write( "https://sooeet.com/math/quadratic-formula-solver.php<BR>\n" );
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document.write( "Convert fractions, decimals, and percents:<BR>\n" );
document.write( "https://sooeet.com/math/fraction-decimal-percent.php<BR>\n" );
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document.write( "Calculate and graph the linear regression of any data set:<BR>\n" );
document.write( "https://sooeet.com/math/linear-regression.php </SPAN>\n" );
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