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10 questions from this quiz
12∣x1y2−x2y1∣\frac{1}{2}|x_1y_2 - x_2y_1|21∣x1y2−x2y1∣
999 square units
x12+y12\sqrt{x_1^2 + y_1^2}x12+y12
555 units
(x2−x1)2+(y2−y1)2\sqrt{(x_2-x_1)^2 + (y_2-y_1)^2}(x2−x1)2+(y2−y1)2
12\frac{1}{2}21
y=mxy = mxy=mx where m=y1x1m = \frac{y_1}{x_1}m=x1y1
m=y2−y1x2−x1m = \frac{y_2-y_1}{x_2-x_1}m=x2−x1y2−y1
Area, side lengths, slopes & equations
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