document.write( "Question 1030205: http://172.85. 76.59/Library/00001211_46_2021_A1.png\r
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Algebra.Com's Answer #645115 by addingup(3677)\"\" \"About 
You can put this solution on YOUR website!
m = (y_2-y_1)/(x_2-x_1)
\n" ); document.write( "Find the equation of the line that passes through the points:
\n" ); document.write( "(2, 11) and (-8, -19)
\n" ); document.write( "First you need to find the slope:
\n" ); document.write( "m = (-19-11)/(-8-2) = 3 (positive, because -/- = +)
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\n" ); document.write( "Now use the point-slope formula with one of the points. I'll use (2,11) because it doesn't have any negative numbers:
\n" ); document.write( "y-y_1 = m(x-x_1)
\n" ); document.write( "y-11 = 3(x-2)
\n" ); document.write( "y-11 = 3x-6
\n" ); document.write( "+ 11 and+11
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\n" ); document.write( "y = 3x+5
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\n" ); document.write( "Let's see if I got it right. The above statement says that when y= a number, x equals 3 times that number plus 5.
\n" ); document.write( "The first two points in your equation are:
\n" ); document.write( "(2, 11) meaning that when y=2 x= 11. Using my answer:
\n" ); document.write( "y = 3x+5 Substitute with (2, 11)
\n" ); document.write( "2= 3(2)+5 = 6+5 = 11 correct, x=11
\n" ); document.write( "Now the other one
\n" ); document.write( "y = 3x+5 Substitute with (-8, -19)
\n" ); document.write( "-8 = 3(-8)+5
\n" ); document.write( "-8 = 3*-8 +5 = -24+5 = -19 Again correct. I gave you the correct answers.\r
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