A triangle with vertices at (x1, y1), (x2, y2), and (x3, y3) has area equal to the absolute value of D, where 
. Use this information to solve the problem.Use D to determine whether the three points are collinear. (4, -10), (-2, 8), (6, -11)
A. The points are collinear.
B. The points are not collinear.
Answer: B
Mathematics
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For the following question(s), refer to the digraph below.
Vertex D is
A. incident to vertex C only. B. incident to vertex B only. C. incident to vertices E and B. D. incident to vertex E only. E. none of these
Mathematics
Find the distance d(A, B) between the points A and B.A = (4, 4); B = (4, -4)
A. 8
B. 7
C. 2
D. 9
Mathematics
Find polar coordinates of the given point. Express the answer in degrees 
or radians 
as indicated.Degrees
A. (-3.5, 90°) B. (3.5, 90°) C. (3.5, 45°) D. (3.5, 0°)
Mathematics
Factor. Check by multiplying.
x - 
y + 
A. 
B. 
(x + 11y - 5)
C. 8(x - 11y + 5)
D. 
(x - 11y + 5)
Mathematics