6506 or 656 is the answer
Answer:
the last choice
Step-by-step explanation:
two functions are said to be inverse when they are symmetric about the line y=x
(0.00142857)=-x is your answer
Answer:
x = -1
x = 3
Step-by-step explanation:
![\sf x^2 - 2x = 3](https://tex.z-dn.net/?f=%5Csf%20x%5E2%20-%202x%20%3D%203)
Add 1 to both sides:
![\sf \implies x^2 - 2x+1 = 3+1](https://tex.z-dn.net/?f=%5Csf%20%5Cimplies%20x%5E2%20-%202x%2B1%20%3D%203%2B1)
Factor the left side:
![\sf \implies (x-1)^2 = 4](https://tex.z-dn.net/?f=%5Csf%20%5Cimplies%20%28x-1%29%5E2%20%3D%204)
Square root both sides:
![\sf \implies x-1 = \pm2](https://tex.z-dn.net/?f=%5Csf%20%5Cimplies%20x-1%20%3D%20%5Cpm2)
Therefore:
![\sf \implies x-1=-2 \implies x=-1](https://tex.z-dn.net/?f=%5Csf%20%5Cimplies%20x-1%3D-2%20%5Cimplies%20x%3D-1)
![\sf \implies x-1=2 \implies x=3](https://tex.z-dn.net/?f=%5Csf%20%5Cimplies%20x-1%3D2%20%5Cimplies%20x%3D3)