Arrange the parabolas with respect tonthe postion of their vertices from left to right

The correct answer for this question is this one:

If the x position of the vertex for f (x) is k then:

1. f (k) = > 4x+3=k, x = (k-3) / 4 = (k/4) - (3/4)

2. x = k+3

3. x = (k+1) / 2 = (k/2) - (1/2)

4. x = 2 (k+2) = 2k+4

5. x = k+7

6. x = k-3

7. x = k-2

So the order depends on the original position of the vertex k, e. g for k=0 the positions would be:

1. - 3/4

2. 3

3. - 1/2

4. 4

5. 7

6. - 3

7. - 2

So, therefore, the order would be 6 7 1 3 2 4 5