document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=23632>Question 23632</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 1. A baby is 18 in. long at birth and 27 in. long at ten months. find the rate of change.\r<BR>\n" );
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document.write( "2. The cost of group museum tickets is $48 for four people and $78 for ten people. find the rate of change.\r<BR>\n" );
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document.write( "3. You drove 30 mi in one hour and 120 mi in four hours. find the rate of change.\r<BR>\n" );
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document.write( "4. (-7,1), (7,8) find the slope of the line passing through each pair of points.\r<BR>\n" );
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document.write( "5. (4,1 2/3), (-2, 2/3). find the slope of the line passing through each pair of points.\r<BR>\n" );
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document.write( "6. (0, 3.5), (-4, 2.5).  find the slope of the line passing through each pair of points.\r<BR>\n" );
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document.write( "7. (1/2, 8), (1, -2). find the slope of the line passing through each pair of points.\r<BR>\n" );
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document.write( "8. (-5, 1/2), (-5, 3). find the slope of the line passing through each pair of points.\r<BR>\n" );
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document.write( "9. (0.5, 6.25), (3, -1.25). find the slope of the line passing through each pair of points.\r<BR>\n" );
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document.write( "10. Construction: An extension ladder has a label that says, \"Do not place base of ladder less than 5 ft from the vertical surface.\" What is the greatest slope possible if the ladder can safely extend to reach a height of 12 ft? of 18 ft?\r<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 #12470 by </B><A HREF=/tutors/aboutme.mpl?userid=queenofit><B>queenofit(120)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=queenofit><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=12470\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> all of your questions can be solved using the following formula<BR>\n" );
document.write( "y2-y1<BR>\n" );
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document.write( "x2-x1\r<BR>\n" );
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document.write( "use points for all the problems.  for problem 1  (0,18)and(10,27) are your points.  Time always goes in the x spot. the first set of points are set x1 and y1 and the second set are x2 and y2.  plug the numbers in the formula I gave and solve\r<BR>\n" );
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document.write( "27-18<BR>\n" );
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document.write( "10-0\r<BR>\n" );
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document.write( "= 9/10\r<BR>\n" );
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document.write( "all are done the same way,  Including slope.  This is the formula for finding slope of a line and for finding rate of change when you have 2 points which you do in every question.  I will do one more for you, number 3\r<BR>\n" );
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document.write( "(1,30)(4,120)<BR>\n" );
document.write( "120-30<BR>\n" );
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document.write( "4-1\r<BR>\n" );
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document.write( "=      90/3  =30 </SPAN>\n" );
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