For the function f(x)=
rac{\sqrt{x} }{5} +2" alt="\frac{\sqrt{x} }{5} +2" align="absmiddle" class="latex-formula">
A. ƒ –1(x) = 25(x – 2)2, x ≥ 2
B. ƒ –1(x) = 25x2 – 2, x ≥ 0
C. ƒ –1(x) = 5(x – 2)2, x ≥ 0
D. ƒ –1(x) = 25(x – 2)2, x ≥ 0
1 answer:
Answer:

Step-by-step explanation:
The inverse function can be found by solving ...
f(y) = x
(√y)/5 +2 = x
(√y)/5 = x -2 . . . . . subtract 2
√y = 5(x -2) . . . . . . multiply by 5
y = 25(x -2)² . . . . . square both sides
The inverse function is ...

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<em>About the graph</em>
The inverse of a function is its mirror image across the line y = x.
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