## Lukecrayonz 3 years ago @dpaInc Need help with precalc?:D http://puu.sh/1pF4v

1. zzr0ck3r

Part a) if you were walking on the graph from left to right, on what intervals will you be going up hill?

2. zzr0ck3r

part b) if you were walking on the graph from left to right, at what point/s will you be in the valley of two hills

3. zzr0ck3r

part(c) does this look like a cubic, -cubic, squared, or -squared function?

4. zzr0ck3r

you here? @Lukecrayonz

5. Lukecrayonz

yes

6. Lukecrayonz

@zzr0ck3r a negative cubic function

7. Lukecrayonz

and for d? I have the other answers

8. zzr0ck3r

so negative.

9. Lukecrayonz

and since they go in opposite directions, its either 5, 7 or 9?

10. zzr0ck3r

well not really, it looks like a cubic because it looks like the highest power in the long run. for this you need to see how many times it changes from decreasing to increasin and vice versa, this number will always be smaller than the degree

11. Lukecrayonz

4 critical points, right?

12. zzr0ck3r

well i guess you are right also...:)

13. Lukecrayonz

4 critical points, odd negative graph means that it has to be 5 7 9 etc etc

14. zzr0ck3r

yes, just understand that it could not be 3

15. dpaInc