Find expressions for the quadratic functions whose graphs are shown.

http://www.webassign.net/scalcet/1-2-8.gif

I know how to do f(x) but I'm stuck on g(x).

- September 7th 2009, 04:40 PMzweevuFind expressions for the quadratic functions whose graphs are shown.
Find expressions for the quadratic functions whose graphs are shown.

http://www.webassign.net/scalcet/1-2-8.gif

I know how to do f(x) but I'm stuck on g(x). - September 7th 2009, 04:46 PMProve It
- September 7th 2009, 04:51 PMpickslides
The second function has the form

The y-intercept c is 1 as shown in the picture so

Now use points (-2,2)

...(1)

and (1,-2.5)

...(2)

and solve the sytem - September 7th 2009, 05:15 PMzweevu
The question is looking g(x) = ... what would I type in for the answer. I got +/- 1/6 for a and b though.

Edit: NVM You plug them into the original equation. Thanks! - September 9th 2009, 02:23 PMpickslides
You have

With and

can you find ? - September 10th 2009, 05:43 AMOliverQ
We assume that:

and the graph of the function got through 3 points, they are:

So:

- September 10th 2009, 02:52 PMkyleu03
can anyone figure out f(x) ???

- September 10th 2009, 03:07 PMpickslides