document.write( "Question 1036648: Write the point-slope form of an equation for a line that passes through the point with the given slope.\r
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\n" ); document.write( "\n" ); document.write( "(-6, -2), m = -2\r
\n" ); document.write( "\n" ); document.write( "Select one:\r
\n" ); document.write( "\n" ); document.write( "a. y + 2 = -2(x + 6)
\n" ); document.write( "b. y - 2 = -2(x + 6)
\n" ); document.write( "c. y + 2 = 2(x + 6)
\n" ); document.write( "d. y + 2 = -2(x - 6)
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Algebra.Com's Answer #651376 by josgarithmetic(39617)\"\" \"About 
You can put this solution on YOUR website!
Slope, m, is vertical change divided by horizontal change for any two points on a line.\r
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\n" ); document.write( "\n" ); document.write( "Any two points, (x[i],y[i]) and (x[t],y[t]),\r
\n" ); document.write( "\n" ); document.write( "\"m=%28y%5Bt%5D-y%5Bi%5D%29%2F%28x%5Bt%5D-x%5Bi%5D%29\"\r
\n" ); document.write( "\n" ); document.write( "What if, you generalize more, dropping the subscripts for t:
\n" ); document.write( "\"m=%28y-y%5Bi%5D%29%2F%28x-x%5Bi%5D%29\"
\n" ); document.write( "\"m%28x-x%5Bi%5D%29=y-y%5Bi%5D\"
\n" ); document.write( "Symmetric Property of Equality gives
\n" ); document.write( "\"highlight%28y-y%5Bi%5D=m%28x-x%5Bi%5D%29%29\", and the sub t variables are now unknown variables, while sub i variables are any given known variables.
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