HELP (I WILL GIVE 30 POINTS)
2 answers:
I think is (A)
> x = (8 - 2f^-1(x))²
=> x^(½) = 8 - 2f^-1(x).
=> -2f^-1(x) = 8 - √x
Therefore:
f^-1(x) = (8 - √x)/2
Hope this help
Answer:
4 ± 1/2sqrt(x) = y
This is not a function
Step-by-step explanation:
f(x) = (8-2x)^2
y = (8-2x)^2
To find the inverse function, exchange x and y and then solve for y
x = (8-2y)^2
Take the square root of each side
±sqrt(x) = 8-2y
Subtract 8 from each side
-8±sqrt(x) = 8-8-2y
-8±sqrt(x) = -2y
Divide by -2
-8/-2± 1/2sqrt(x) = -2/-2y
4 ± 1/2sqrt(x) = y
This is not a function
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Answer:
146 is the answer im positive