Determinants are used to show that three points lie on the same line (are collinear). If
x1 y1 1
x2 y2 1
x3 y3 1 = 0,

then the points ( x1, y1), ( x2, y2), and ( x3, y3) are collinear. If the determinant does not equal 0, then the points are not collinear. Are the points (-2, -1), (0, 9), (-6, -21) and collinear?

A. Yes

B. No

Question

Determinants are used to show that three points lie on the same line (are collinear). If 
x1   y1  1
x2   y2   1
x3   y3    1 = 0, 

then the points ( x1, y1), ( x2, y2), and ( x3, y3) are collinear. If the determinant does not equal 0, then the points are not collinear. Are the points (-2, -1), (0, 9), (-6, -21) and collinear?

A. Yes	

B. No

anonymous · Answer

@Falkqwer @Luis_Rivera @DDCamp @Loser66

ddcamp · Answer

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