document.write( "Question 901053: Use the concept of slope to determine whether the given figure is a right triangle (i.e., does the triangle contain a right angle?). (2,3) (2, -2) (-1,-3) \n" ); document.write( "

Algebra.Com's Answer #546421 by josgarithmetic(39617) $\"\"$ $\"About$

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Find slopes of all pair of points.\r
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\n" ); document.write( "\n" ); document.write( " $\"%283-%28-2%29%29%2F0=vertical+line\"$ first two points listed;\r
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\n" ); document.write( "\n" ); document.write( " $\"%28-2-%28-3%29%29%2F%282-%28-1%29%29=1%2F3\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"%283-%28-3%29%29%2F%282-%28-1%29%29=6%2F3=2\"$ \r
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\n" ); document.write( "\n" ); document.write( "No two slopes are negative reciprocals of each other, so the points do not form a right triangle. \n" ); document.write( "

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