document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1199201>Question 1199201</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Z varies directly as x^2. If z=50 when x=5, find when x=7 </SPAN>\n" );
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document.write( "z varies directly as the square of x, so when x changes by a factor of 7/5, z changes by a factor of (7/5)^2.<br><BR>\n" );
document.write( "ANSWER: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2850%29%28%287%2F5%29%5E2%29=50%2849%2F25%29=49%2A2=98 ALIGN=MIDDLE  ALT=\"%2850%29%28%287%2F5%29%5E2%29=50%2849%2F25%29=49%2A2=98\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( " </SPAN>\n" );
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