Answer:
f = 9.25 (I think but maybe I read f(4) wrong)
Step-by-step explanation:
so f(4) means x = 4.
The new equation is
f(4) = 2x4 ^2 - 4 + 9
you first do 2x4^2. The minus 4. The add 9.
the answer to that is 4f = 37
Then solve
F = 9.25
Answer:
You can see objects, nd buildings that have those shapes, and roof tops.
Step-by-step explanation:
When a function is reflected, it must be reflected over a line
The new function is: ![y = |4 -x| -8](https://tex.z-dn.net/?f=y%20%3D%20%7C4%20-x%7C%20-8)
The equation is given as:
![y = |x + 4| - 8](https://tex.z-dn.net/?f=y%20%3D%20%7Cx%20%2B%204%7C%20-%208)
The rule of reflection over the y-axis is:
![(x,y) \to (-x,y)](https://tex.z-dn.net/?f=%28x%2Cy%29%20%5Cto%20%28-x%2Cy%29)
So, we have:
![y = |-x + 4| -8](https://tex.z-dn.net/?f=y%20%3D%20%7C-x%20%2B%204%7C%20-8)
Rewrite as:
![y = |4 -x| -8](https://tex.z-dn.net/?f=y%20%3D%20%7C4%20-x%7C%20-8)
Hence, the new function is:
![y = |4 -x| -8](https://tex.z-dn.net/?f=y%20%3D%20%7C4%20-x%7C%20-8)
Read more about reflections at:
brainly.com/question/938117