preciousorock preciousorock
  • 01-10-2020
  • Mathematics
contestada

10. -3x - 4y= 12

11. -9x + 4y = -36

5x – 3y = -15

Respuesta :

swan85 swan85
  • 02-10-2020

Answer:

Step-by-step explanation:

x-intercept (x,0) , y intercept (0,y)

10: -3x-4y=12

x=0 , -3(0)-4y=12

-4y=12 , ⇒ y=12/-4 ⇒ y=-3

y=0 : -3x-4(0)=12

-3x=12 ⇒ x=12/-3 ⇒ x=-4

x intercept (-4,0) and ( 0,-3)

-9x+4y=-36

x=0 , 4y=-36 , y=-36/4 , y=-9  

y=0 , -9x=-36 , x=-36/-9 , x=4

x intercept (4,0)  , y intercept (0,-9)

5x-3y=-15

x=0 , -3y=-15 , y=-15/-3 , y=5

y=0 , 5x=-15 , x=-15/5 , x=-3

x intercept (-3,0) , y intercept ( 0,5)

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