f(x) = ax˛ + bx + c. If f(1) = 6, f (-1) = 8, f(-2) = 18, find f (2)

Can someone please do the solution for me. I know that the answer is 14 but I dont know how to get that.

Thanks!

Results 1 to 10 of 10

- Dec 8th 2009, 11:48 AM #1

- Joined
- Dec 2009
- Posts
- 61

- Dec 8th 2009, 11:51 AM #2

- Dec 8th 2009, 12:01 PM #3

- Joined
- Dec 2009
- Posts
- 61

- Dec 8th 2009, 12:07 PM #4

- Dec 8th 2009, 12:08 PM #5

- Joined
- Dec 2009
- From
- marlton
- Posts
- 16

the first time, you need find a, b, c:

we have so and change into the

then is same the

so we have

you can find a, b,c

then change a, b, c you found go into

finally you can find easily.

if you didnot understand you can ask me and i can explain again. sorry my english bad something i wrote wrong .

- Dec 8th 2009, 12:10 PM #6

- Dec 8th 2009, 12:16 PM #7

- Joined
- Dec 2009
- From
- marlton
- Posts
- 16

- Dec 8th 2009, 12:27 PM #8

- Joined
- Dec 2009
- Posts
- 61

- Dec 8th 2009, 12:39 PM #9

- Dec 8th 2009, 12:52 PM #10

- Joined
- Dec 2009
- From
- marlton
- Posts
- 16