TUPECOSITAFAVORITAIN TUPECOSITAFAVORITAIN Matemáticas contestada 1. (2,-1) (-5,3) 2. (-4,3) (-3,4) 3. (8,1) (2,6) 4. (13,-3) (5,6) 5. (20,-5) 6. (-9,1) (7,8) 7. 36x + -4y = 4 8. 12x + 3y =-6 9. 5x + 10y =20 10. 2x + 2y =4 hallar la pendiente e interceptó en y.