Question

.
Find a quadratic model for the values in the table.

https://gls.agilix.com/Resz/~Ey6YBAAAAAgt4YfPYDjN7B.24FI7WcevxQboN0XpOCnNB/19809086,C25/Assets/assessmentimages/alg2%20pt%201%20u3l1%207.jpg

f(x) = –9x2 + 3x + 7

f(x) = 7x2 – 9x + 3

f(x) = 3x2 + 7x – 9

f(x) = 3x2 – 9x + 7
@aaronq

Answer 1

@just_one_last_goodbye

Answer 2

@peachpi

Answer 3

I have no idea how to do it

Answer 4

\[f(x)=ax^2+bx+c\]

Plug in any three of the points to get a system of equations.
\[-11=a(-2)^2-2b+c\]
\[-9=a(0)^2-(0)b+c\]
\[1=a(1)^2-(1)b+c\]

Answer 5

I got c as my answer

Answer 6

yeah that's right