## lgbasallote 3 years ago How do you compute for the range of a function? is it just the inverse?

1. baldymcgee6

The domain of the original function will be the range of the inverse.

2. baldymcgee6

I don't think there is ALWAYS a systematic way of computing the range; as opposed to always having a systematic way of computing the domain.

3. lgbasallote

and the range of the original function would be the domain of the inverse?

4. baldymcgee6

Right, as well as all point (x,y) in the original become (y,x) in the inverse

5. lgbasallote

this is getting confusing....

6. lgbasallote

what is the range without looping words?

7. baldymcgee6

What do you mean, "without looping words"?

8. lgbasallote

well you're using words that loop (and make it complicated)

9. lgbasallote

domain of function is the range of the inverse and the range of the function is the domain of the inverse where (x,y) is (y,x) in inverse ^see how loop-y that is?

10. lgbasallote

do you know a simple explanation @nincompoop ?

11. baldymcgee6

Sorry, simply put: the range of a function is all the values of the dependent variable for which the function is defined. Eg: y = x^2 The range is all the values for which the dependent variable (y) is defined, which is all values greater than zero. You will never get an output of a negative number from this function.

12. lgbasallote

so....the range *is* the domain of the inverse function?

13. baldymcgee6

Yes, the range of the original function IS the domain of it's inverse.

14. lgbasallote

please say yes or no before going into very confusing details

15. lgbasallote

ahh a yes then

16. lgbasallote

it was all i wanted to hear....

17. baldymcgee6

|dw:1350876020195:dw|See how the Domain and range simply switch. As you can see, the inverse of a function is reflected along y=x

18. lgbasallote

....and there came the complicated explanations

19. lgbasallote

just because i have a high level in smartscore doesn't mean i understand those things......i hate math, remember?

20. lgbasallote

21. lgbasallote

you can delete

22. baldymcgee6

Do you lose smart score for deleting responses?

23. lgbasallote

yes. yes you do

24. baldymcgee6

So that's how you got to 99!!