In the plane rectangular coordinate system, there are two straight lines, y = 3 / 5x + 9 / 5 and y = - 3 / 2x + 6. Their intersection point is m. The first line intersects with X axis at point a, and the second line intersects with X axis at point a Intersection with X axis at point B (1) Find the coordinates of two points a and B; (2) Using the image method to solve the equations; {3x-5y = - 93x + 2Y = 12 (3) Find the area of △ mAb)

In the plane rectangular coordinate system, there are two straight lines, y = 3 / 5x + 9 / 5 and y = - 3 / 2x + 6. Their intersection point is m. The first line intersects with X axis at point a, and the second line intersects with X axis at point a Intersection with X axis at point B (1) Find the coordinates of two points a and B; (2) Using the image method to solve the equations; {3x-5y = - 93x + 2Y = 12 (3) Find the area of △ mAb)

(1) A: (- 3,0) B: (4,0) (make y = 0 respectively)
(2)x=8,y=3
(3) Using the analytic simultaneous equations of two straight lines, the solution is obtained as m point coordinate, M: (2,3)
The distance between AB is 7, so the s triangle mAb = 7 times 3 times 1 / 2 = 10.5