document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=210380>Question 210380</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Use the quadratic formula to determine the x intercepts (if any) of the following function.  Then evaluate the function for several values of x, and use the resulting points to graph the function.  Show your work.<BR>\n" );
document.write( "f(x)=7x^2-2\r<BR>\n" );
document.write( "\n" );
document.write( "I have already come up with what I believe is the solution of the quadrtic, <BR>\n" );
document.write( "x=0.534  x= -0.534.I don't understand how to get the other points on the graph and have it look like it's supposed to.<BR>\n" );
document.write( "Thanks\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #158976 by </B><A HREF=/tutors/aboutme.mpl?userid=Earlsdon><B>Earlsdon(6294)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Earlsdon><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=158976\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Your solutions to the quadratic are correct.<BR>\n" );
document.write( "What the problem is further asking is that you choose several (two or three) values of x and solve the quadratic for each of these to find the corresponding y-value (that's the f(x) value) and plot the resulting points on coordinate graph paper then draw the curve.<BR>\n" );
document.write( "Here's what the graph should look like:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=graph%28400%2C400%2C-3%2C3%2C-5%2C5%2C7x%5E2-2%29 ALIGN=MIDDLE  ALT=\"graph%28400%2C400%2C-3%2C3%2C-5%2C5%2C7x%5E2-2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Here's an example:<BR>\n" );
document.write( "Choose x = 0.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+7%280%29%5E2-2 ALIGN=MIDDLE  ALT=\"y+=+7%280%29%5E2-2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+-2 ALIGN=MIDDLE  ALT=\"y+=+-2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "One of the points could be (0, -2).<BR>\n" );
document.write( "Find a few more and plot them. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );