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30 August, 15:14

f (x) = x2 + 7, what is the equation for f-1 (x) ?

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  1. 30 August, 18:44
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    F-1 (x) = (x-7) / 2, you can get this by taking 2x + 7, and doing the opposite operations on x. you also need to go in the reverse direction of Order of Operations. So first, we take 7 away from x, since subtraction is opposite from addition, and it is the last thing we would do in order of operations. next we only have the 2 multiplier left, so we put the x-7 in parenthesis, and divide by 2.
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