Which of the following relations is a function? {a. (1, 2), (1, 3), (2, 8), (3, 9) } b.{ (1, 2), (2, 3), (3, 4), (4, 5) } c.{ (3, -1), (2, 3), (3, 4), (1, 7) } d.{ (3, 0), (4, -3), (6, 7), (4, 4) }

24+x=y

step-by-step explanation:

an

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 )