Hello!
1. Identify the parent function and its transformations
This graph is an example of a cube root function. Cubed root function act differently from squared root function. You can't square root a negative number, but you can with cube roots. That uniqueness causes this graph.
Parent function: ![y =\sqrt[3]{x}](https://tex.z-dn.net/?f=%20y%20%3D%5Csqrt%5B3%5D%7Bx%7D%20)
Looking at the graph, is shifted up one unit. Why? Let's substitute zero into the parent function:
y = ∛0 = 0
The parent function would have the point at (0, 0), while this graph is at (0, 1).
Also, the graphed is reflected over the x-axis because the graph is not increasing, but decreasing.
Answers:
- A reflection in the x-axis (first choice)
- A vertical shift of one unit upward (fifth choice)
2. Write an equation
Given the transformations, the graph is multiplied by -1, (reflection) and outside of the radicand, it is adding 1 (vertical shift)
y = ![-\sqrt[3]{x} + 1](https://tex.z-dn.net/?f=%20-%5Csqrt%5B3%5D%7Bx%7D%20%2B%201%20)
Final answers:
- Parent function:
, - Transformations: a reflection in the x-axis (choice 1), a vertical shift of one unit upward (choice 5)
- Graphed function:
![y=\sqrt[3]{x} + 1](https://tex.z-dn.net/?f=%20y%3D%5Csqrt%5B3%5D%7Bx%7D%20%2B%201%20)