mohamadrabed604 mohamadrabed604
  • 11-10-2018
  • Mathematics
contestada

Graph 6x-2y=2 ,9x-3y=1

Respuesta :

gmany
gmany gmany
  • 11-10-2018

It's a linear function. We need only two points to draw a graph.

We choose any values of x and calculate the value of y.

[tex]6x-2y=2\qquad|-6x\\\\-2y=-6x+2\qquad|:(-2)\\\\y=3x-1[/tex]

for x= 0 → y = 3(0) - 1 = 0 - 1 = -1 → (0, -1)

for x = 2 → y = 3(2) - 1 = 6 - 1 = 5 → (2, 5)

[tex]9x-3y=1\qquad|-9x\\\\-3y=-9x+1\qquad|:(-3)\\\\t=3x-\dfrac{1}{3}[/tex]

for x = 0 → y = 3(0) - 1/3 = 0 - 1/3 = -1/3 → (0, -1/3)

for x = 2 → y = 3(2) - 1/3 = 6 - 1/3 = 5 2/3 → (2, 5 2/3)

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