The problem asks to identify the type of transformation applied to the parent function $g(x)$ to obtain the function $f(x) = g(x) + 9$. The options are reflections, stretches/compressions, vertical shifts, and horizontal shifts.

AlgebraFunction TransformationsVertical ShiftsFunction Analysis
2025/6/12

1. Problem Description

The problem asks to identify the type of transformation applied to the parent function g(x)g(x) to obtain the function f(x)=g(x)+9f(x) = g(x) + 9. The options are reflections, stretches/compressions, vertical shifts, and horizontal shifts.

2. Solution Steps

The transformation is given by the equation f(x)=g(x)+9f(x) = g(x) + 9.
This transformation adds a constant value (9) to the output of the function g(x)g(x).
Adding a constant to the output of a function results in a vertical shift. If the constant is positive, the shift is upwards. If the constant is negative, the shift is downwards.
In this case, since we are adding 9 to g(x)g(x), the graph of g(x)g(x) is shifted upwards by 9 units.
Vertical shifts are described by transformations of the form f(x)=g(x)+kf(x) = g(x) + k, where kk is a constant. If k>0k > 0, the graph shifts upwards by kk units. If k<0k < 0, the graph shifts downwards by k|k| units.
Reflections across the x-axis are described by f(x)=g(x)f(x) = -g(x).
Reflections across the y-axis are described by f(x)=g(x)f(x) = g(-x).
Horizontal stretches/compressions are described by f(x)=g(cx)f(x) = g(cx) for some constant cc.
Horizontal shifts are described by f(x)=g(xh)f(x) = g(x-h), where hh is a constant.
Since we have f(x)=g(x)+9f(x) = g(x) + 9, this is a vertical shift of the parent function g(x)g(x).

3. Final Answer

The transformation is a vertical shift.
Specifically, it is a vertical shift upwards by 9 units.
The answers for each option are:
a) Reflections: No.
b) Stretches/Compressions: No.
c) Vertical Shifts: Yes, upwards by

9. d) Horizontal Shifts: No.