Determine the most precise name for the quadrilateral with vertices at a(–7, –2), b(0, 2), c(4, –5), and d(–3, –9).

a. rectangle
b. rhombus
c. kite
d. square

The answer for the given question above would be letter D. Square. Observe that the diagonals AC and BD have equal length and are perpendicular. 
Another way is to show that angle DAB is a right angle and the four sides are equal. I hope this answer helps.

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