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Determine which sequences of transformations could be applied to the parent function f(x) = x to obtain the graph of g.

1. Shift up 6 units, reflect over the x-axis, and then vertically stretch by a factor of 3

2. Shift right 2 units, reflect over x-axis, and then vertically stretch by a factor of 3

3. Shift right 6 units, reflect over x-axis, and then vertically stretch by a factor of 3

4. Reflect over the x-axis, vertically stretch by a factor of 3, and then shift up 6 units

5. Reflect over the y-axis, vertically stretch by a factor of 3, and then shift up 6 units

6. Shift left 2 units, reflect over x-axis, and then vertically stretch by a factor of 3​​