(1 / 2) the first question is to judge the position relation of a (- 2,12), B (1,3), C (4, - 6) and explain the reason (1 / 2) question 1 judge the position relation of a (- 2,12), B (1,3), C (4, - 6) and explain the reason The second problem is to find the three dimensions of the line 2x-5y-10 = 0 and the coordinate axis | Math enthusiast | Mathematical art

(1 / 2) the first question is to judge the position relation of a (- 2,12), B (1,3), C (4, - 6) and explain the reason (1 / 2) question 1 judge the position relation of a (- 2,12), B (1,3), C (4, - 6) and explain the reason The second problem is to find the three dimensions of the line 2x-5y-10 = 0 and the coordinate axis

Three points are on a straight line. Knowing the coordinates of three points, we can get the linear equation: y = - 3x + 6
Let X and y be 0 respectively, find out the corresponding value of Y and X as - 2,5, and then use its absolute value as two right angle sides to calculate: 1 / 2 * 2 * 5 = 5
3 to be continued Answer in the next question

RELATED INFORMATIONS

1. Given three points a (1,3), B (- 2,0), C (12,4), try to judge whether these three points are on the same straight line, and explain the reason
2. Given a (- 1,1), B (1,3), C (2,5), try to judge the position relationship of a, B, C
3. The line a is parallel to B, B is parallel to C, D intersects with a at point m (2). Judge the position relationship between C and D, and explain the reason
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19. If 2A + 3B = 4 and 3a-b = - 5 can hold simultaneously, then a = B=
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