document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=402714>Question 402714</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help with the following:\r<BR>\n" );
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document.write( "5. Is f(x) = x^2+2x-3 a one-to-one function? Explain your answer \r<BR>\n" );
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document.write( "6. For the polynomial f(x)= -11x^3+3x^2-x+1, what is the degree of F and what is its leading coefficent? <BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #284851 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=284851\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 5. Is f(x) = x^2+2x-3 a one-to-one function? Explain your answer<BR>\n" );
document.write( "Ans: No. For each x there is only one y-value.<BR>\n" );
document.write( "But Some y-values are the result of 2 different x-values.<BR>\n" );
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document.write( "See the graph:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=graph%28400%2C300%2C-10%2C10%2C-10%2C10%2Cx%5E2%2B2x-3%29 ALIGN=MIDDLE  ALT=\"graph%28400%2C300%2C-10%2C10%2C-10%2C10%2Cx%5E2%2B2x-3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "6. For the polynomial f(x)= -11x^3+3x^2-x+1, what is the degree of F and what is its leading coefficent?<BR>\n" );
document.write( "Ans: degree = 3 because the highest power term is x^3<BR>\n" );
document.write( "leading coefficient is -11<BR>\n" );
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document.write( "cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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