anonymous one year ago Graph the function f(x) = − x4 + 7x3 − 9x2 − 3x + 10 using graphing technology and identify for which values of x the graph is decreasing.

1. DanJS

did you graph the thing ?

2. DanJS

3. anonymous

I have no idea how.

4. DanJS

It says to use a computer. Look where the function has tangent lines with negative slopes...

5. anonymous

ok so would it be x=0 and x=1?

6. DanJS

Those are two points that are on a decreasing part of the function.... they are loooking for the entire interval(s)

7. anonymous

I don't uunderstand

8. DanJS

For instance, the function is decreasing for x, when -0.14 < X < 1.28

9. anonymous

ok. I see, I see.

10. DanJS

Is this for calculus 1 or algebra

11. anonymous

Thank you:) Can describe the end behavior of f(x) = 3x32 + 8x2 − 22x + 43.

12. anonymous

calulus 1

13. anonymous

Planning to take AP Cal BC next year

14. anonymous

describe the end behavior of f(x) = 3x32 + 8x2 − 22x + 43.

15. anonymous

is the answer up on the left, and down on the right?

16. DanJS

ok, have you done the first derivative test for increasing/decreasing intervals

17. anonymous

No. Not yet

18. anonymous

i'm doing it at BC and my teacher has no idea what she's doing.

19. DanJS