Answer:
A quadratic function generally does not have an inverse except on a restricted domain. If the domain of the <em>original</em> function is restricted to x ≥ 0, then the inverse function is ...
![f^{-1}(x)=\displaystyle\sqrt{\frac{x-4}{5}}](https://tex.z-dn.net/?f=f%5E%7B-1%7D%28x%29%3D%5Cdisplaystyle%5Csqrt%7B%5Cfrac%7Bx-4%7D%7B5%7D%7D)
Step-by-step explanation:
Start by interchanging x and "y", then solve for y.
y = 5x² +4 . . . . . . given
x = 5y² +4 . . . . . . with x and y interchanged
x -4 = 5y² . . . . . . subtract 4
(x -4)/5 = y² . . . . . divide by 5
√((x -4)/5) = y . . . take the square root . . . . x ≥ 4, y ≥ 0
Then, ...
![f^{-1}(x)=\displaystyle\sqrt{\frac{x-4}{5}}](https://tex.z-dn.net/?f=f%5E%7B-1%7D%28x%29%3D%5Cdisplaystyle%5Csqrt%7B%5Cfrac%7Bx-4%7D%7B5%7D%7D)
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The graph shows the original f(x) and the "inverse", called f1(x). Note that it is only a reflection across y=x of the right half of the original function. That is, the inverse only exists for the original function when its domain is restricted to x ≥ 0. (The domain of the inverse function is x ≥ 4.)
Soo you subtract 2 from 11/3 which is 1.6 then you divide 5 from that number so the answer is 0.33 repeating
8yards=24ft
as a fraction=3/24
simplest form=1/8
hope this helps
Answer: 117 degrees
Step-by-step explanation:
Answer:
ok
Step-by-step explanation:
first graph: 3.5, 3.5, 3.5, 3.5, so this one is yes
second graph: 2.5, 2.3, 2, 1.5, so no
third graph: 2, 2, 2, 2 this one is yes
sorry the first time i was wrong