Learning Resources

Investigation 4: The Square-Root Function & Focus H: Irrational Functions and Inverses

Remember, you must identify the vertex, as it is an indicator of the suitable restriction. There are two possible answers to each question. You only need to provide one solution.

1. Vertex: (0, -3). Restriction: {x / x 0} or {x / x 0}
2. Vertex: (-3, 0). Restriction: {x / x -3} or {x / x -3}
3. Vertex: (1, 4). Restriction: {x / x 1} or {x / x 1}