We are given three functions: $f(x) = \frac{1}{5}x^2$, $p(x) = -x$, and $z(x) = x + 8$. We need to find the composition $z(f(p(x)))$. Then, we need to describe the transformations from the parent function $x^2$.

AlgebraFunction CompositionTransformationsQuadratic FunctionsVertical CompressionVertical Shift
2025/6/12

1. Problem Description

We are given three functions: f(x)=15x2f(x) = \frac{1}{5}x^2, p(x)=xp(x) = -x, and z(x)=x+8z(x) = x + 8. We need to find the composition z(f(p(x)))z(f(p(x))). Then, we need to describe the transformations from the parent function x2x^2.

2. Solution Steps

First, we find p(x)=xp(x) = -x.
Next, we find f(p(x))f(p(x)) by substituting p(x)p(x) into f(x)f(x):
f(p(x))=f(x)=15(x)2=15x2f(p(x)) = f(-x) = \frac{1}{5}(-x)^2 = \frac{1}{5}x^2.
Finally, we find z(f(p(x)))z(f(p(x))) by substituting f(p(x))f(p(x)) into z(x)z(x):
z(f(p(x)))=z(15x2)=15x2+8z(f(p(x))) = z(\frac{1}{5}x^2) = \frac{1}{5}x^2 + 8.
Now let's discuss the transformations.
The parent function is x2x^2.
The transformed function is 15x2+8\frac{1}{5}x^2 + 8.
Compared to the parent function x2x^2:
* Reflection: No reflection across the x-axis since the coefficient of x2x^2 is positive.
* Stretch/Compression: Vertical compression by a factor of 15\frac{1}{5}.
* Vertical Shift: Upward shift by 8 units.
* Horizontal Shift: No horizontal shift.

3. Final Answer

z(f(p(x)))=15x2+8z(f(p(x))) = \frac{1}{5}x^2 + 8
Reflection: None
Stretch/Compression: Vertical Compression
Vertical Shift: Up
Horizontal Shift: None

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