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Mathematics
Homer
12 February, 20:11
What is the inverse of the function
f (x) = 2x+1
+2
Answers (
1
)
Kaliyah Beasley
12 February, 20:29
0
Inverses are easy for this problem. First we start with the equation. Then we change the f (x) to y to make this whole problem easier.
y=2x+1
Isolate the x and solve for x.
x = (y-1/2)
Switch x and y again.
y = (x-1/2)
Add function notation.
f^-1 (x) = (x-1/2)
Done! And if you need to check if equations are inverses, add the original equation into the x variable of the inverse. The solution should be f^-1 (x) = x. That means the inverse is right.
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