document.write( "Question 939114: 5.7 quiz\r
\n" ); document.write( "\n" ); document.write( "3.) Find an equation of the line that passes through the two given points. Write the equation in slope-intercept form, if possible.
\n" ); document.write( "x | y
\n" ); document.write( "-4| 2
\n" ); document.write( " 4| 0\r
\n" ); document.write( "\n" ); document.write( "8.) There is a linear relationship between a woman's height and the length of her radius bone. It can be stated this way: Height increases by 3.9 inches for each 1-inch increase in the length of the radius. Suppose a 62-inch-tall woman has a 10-inch-long radius bone. Use this information to write a linear equation that relates height h to the length r of the radius. Write the equation in slope-intercept form.\r
\n" ); document.write( "\n" ); document.write( "9.) Three months after cleanup began at a dump site, 880 cubic yards of toxic waste had yet to be removed. Two months later, that number had been lowered to 800 cubic yards.
\n" ); document.write( "(a) Find an equation that describes the linear relationship between the length of time m (in months) the cleanup crew has been working and the number of cubic yards y of toxic waste remaining. Write the equation in slope-intercept form.\r
\n" ); document.write( "\n" ); document.write( "(b) Use your answer to part (a) to predict the number of cubic yards of waste that will still be on the site one year after the cleanup project began.
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Algebra.Com's Answer #572206 by josgarithmetic(39617)\"\" \"About 
You can put this solution on YOUR website!
#9 only:\r
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\n" ); document.write( "\n" ); document.write( "x for how many months of cleanup
\n" ); document.write( "y for how much remains\r
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\n" ); document.write( "\n" ); document.write( "Identify ordered pairs:
\n" ); document.write( "(3,880), and then time 3+2 months or 5 months, 800 cubic yards, so (5,800).\r
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\n" ); document.write( "\n" ); document.write( "Form the equation of the line in slope-intercept form:
\n" ); document.write( "\"m=%28800-880%29%2F%285-3%29=-80%2F2=-40\";
\n" ); document.write( "-
\n" ); document.write( "\"y=mx%2Bb\"
\n" ); document.write( "\"b=y-mx\"
\n" ); document.write( "b=pick a point,
\n" ); document.write( "\"b=800-%28-40%295\"
\n" ); document.write( "\"b=800%2B200\"
\n" ); document.write( "\"b=1000\"
\n" ); document.write( "-
\n" ); document.write( "\"highlight%28y=-40x%2B1000%29\"\r
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\n" ); document.write( "\n" ); document.write( "The analysis of and solution to #9 should help with the previous two questions.
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