document.write( "Question 1192180: what is y2 - y1 / x2 - x1 I need to know for the math test in 3 hours. PLEASE HELP ME. \n" ); document.write( "
Algebra.Com's Answer #824090 by ikleyn(52781)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "It may have different names, depending on the context, which we do not know from your post.\r
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\n" ); document.write( "\n" ); document.write( "For example, in one context, it is a slope of a straight line in a coordinate plane.\r
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\n" ); document.write( "\n" ); document.write( "In other context, it is the first difference of a function y = y(x).\r
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\n" ); document.write( "\n" ); document.write( "In the third context, it can be a formula to estimate the first derivative of the function y = y(x).\r
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\n" ); document.write( "\n" ); document.write( "In the fourth context, it can be the average rate of changing function y = y(x).\r
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\n" ); document.write( "\n" ); document.write( "At this forum, you can obtain comprehensive, precise, brilliant first class solutions and explanations to many problems;\r
\n" ); document.write( "\n" ); document.write( "but do not postpone your question/questions to the last 3 hours before the test: do it in advance.\r
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