As shown in the figure, in the plane rectangular coordinate system, a (- 1,5), B (- 1,0), C (- 4,3); (1) calculate the area of △ ABC; (2) draw the figure △ a1b1c1 after △ ABC is translated one unit down and five units to the right, and write the coordinates of each vertex
(1) The area of △ ABC = 12 × 5 × 3 = 152; (2) △ a1b1c1 as shown in the figure, A1 (4,4), B1 (4, - 1), C1 (1,2)
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- 2. Point a (0, - 3) point (- 3,0), point C on the x-axis, if the area of triangle ABC is 15, find the coordinates of point C
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