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Amanda [17]
3 years ago
9

Let f(x) = x2 − 81. Find f−1(x)

Mathematics
1 answer:
valkas [14]3 years ago
8 0
This equation states that x equals -1. So you plug in -1 to all the x's and solve. 
So, your equation would be f(-1) = (-1)(2) - 81
So, f(-1) = -2 - 81
Then, this means that f(-1) = -83
So........
f(-1) is equal to -83
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