Write the following equations in the form y=mx+ b. 1.) x-3y =12
2.)-6x+y=1/3
3.)1/3 x+9y=15

Answer is    A

Step-by-step explanation:

Write the matrix form of the function and solve:

x y 1

1 2 1    = 0

2x + 2y + 5  - 4 - y -5x = 0

-3x + 1 + y = 0

y= 3x  + 1

Answer  

1.)y=-x+3        

m=-1      b= 3

Step-by-step explanation:

  x+y=3

-x        -x

  y=3-x

  y=-x+3

m=-1      b= 3

2.)y=1/3 x -4

  m=1/3      b=-4

Step-by-step explanation:

x-3y=12

   -x       -x

   -3y/-3 =  -x + 12/-3

    y=1/3 x -4

m=1/3      b=-4

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step-by-step explanation: