document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=671625>Question 671625</A>: <I><SPAN STYLE=\"word-break: break-all;\"> At 68 degrees F, a certain species of cricket chirps 24 times per minute.At 40 degrees F, the same cricket chirps 86 \r<BR>\n" );
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document.write( "A. express the number of chirps (y) as a linear function of the farenheit temperature (X)( hint: find the slope first).\r<BR>\n" );
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document.write( "B. Interpet the slope in a sentence for this linear function.\r<BR>\n" );
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document.write( "C. If the temperature is 60 degrees F how many times will the cricket chirp per min?\r<BR>\n" );
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document.write( "D. If you count the number of cricket chirps in one half minute and hear 40 chirps,what is the temperature?times per min. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #417495 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=417495\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> At 68 degrees F, a certain species of cricket chirps 24 times per minute.At 40 degrees F, the same cricket chirps 86 <BR>\n" );
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document.write( "Points: (68,24) and (40,86)<BR>\n" );
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document.write( "A. express the number of chirps (y) as a linear function of the farenheit temperature (X)( hint: find the slope first).<BR>\n" );
document.write( "slope = (86-24)/(40-68) = 62/-28 = -(31/14)<BR>\n" );
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document.write( "Form: y = mx + b<BR>\n" );
document.write( "substitute for y,x,m ; Solve for \"b\":<BR>\n" );
document.write( "24 = (-31/14)68 + b<BR>\n" );
document.write( "b = 174.57<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "y = (-31/14)x + 174.57<BR>\n" );
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document.write( "B. Interpet the slope in a sentence for this linear function. <BR>\n" );
document.write( "When the temperature decreases 31, the # of chirps increases 14<BR>\n" );
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document.write( "C. If the temperature is 60 degrees F how many times will the cricket chirp per min? <BR>\n" );
document.write( "Solve f(60)<BR>\n" );
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document.write( "D. If you count the number of cricket chirps in one half minute and hear 40 chirps,what is the temperature?times per min.<BR>\n" );
document.write( "# per minute would be 80<BR>\n" );
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document.write( "solve 80 = (-31/14)x + 174.57 for \"x\".<BR>\n" );
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document.write( "cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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