Write a formula for f(a) in terms of a -3a + 6b = a + 4b

   f(a) = 1/2b

Step-by-step explanation:

-3a + 6b = a + 4b    To write a formula in terms of a then we need to first solve for a.

-3a + 6b  = a +4b

      -6b           -6b

-3a = a + -2b

-a      -a

   -4a = -2b

   a =  1/2b

f(a) = 1/2b

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y = 6x -3y -12

y +3y +12 = 6x

=> . x = { 2y / 3 +2 } this is equation of line in terms of x

=> . if line meets the x-axis the co-ordinates of meeting point would be ( x , 0 )

=> . x = 2 ( 0 ) / 3 + 2

=> . x = 2

so, the point is ( 2 , 0 )