## jethro210 3 years ago determine value h(2a) for function h(x)=x-1/1-x

1. jethro210

i got 2a-1/1-2a=H(x) do i need to do anything else

2. akash_809

its (2a-1)/(1-2a) =-1 , so -1 is the answer

3. UnkleRhaukus

here are the steps akash_809 has used $h(x)=\frac{x-1}{1-x}$$h(2a)=\frac{2a-1}{1-2a}$$\qquad\quad=\frac{-(1-2a)}{1-2a}$$\qquad\quad=\frac{-\cancel{(1-2a)}}{\cancel{1-2a}}$$\qquad\quad =-1$

4. jethro210

what if I used A+1 as my x value?

5. akash_809

platinum ring again :)

6. UnkleRhaukus

ring ring; hello?

7. akash_809

@jethro210 it would be same

8. akash_809

i.e =-1

9. UnkleRhaukus

the function gives the same value for all inputs (except x=1, which has indeterminate value )

10. akash_809

thanks for the medal un(c)kle

11. UnkleRhaukus

anytime

12. akash_809

@jethro210 u wl always get quick replies due to the pic :) you have used

13. jethro210

cool.

14. jethro210

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