document.write( "Question 1000832: given points A(-1,-4), B(1,x), and C(3,-1). determine x so that A, B, and C are collinear \n" ); document.write( "
Algebra.Com's Answer #618145 by josgarithmetic(39618)\"\" \"About 
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Find slope for line AC;\r
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\n" ); document.write( "\n" ); document.write( "Setup equation for slope of either line AB or CB;\r
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\n" ); document.write( "\n" ); document.write( "Solve the equation.\r
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\n" ); document.write( "\n" ); document.write( "Still need help? The key is to know the formula for slope.
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