10.1k views
4 votes
I just need the answer

User TFS
by
5.4k points

1 Answer

6 votes

f(x)=ax^2+bx+c

At x=0


\begin{gathered} f(x)=14 \\ c=14 \end{gathered}

at x=1


\begin{gathered} f(x)=10.5 \\ a+b=10.5-14 \\ a+b=-3.5 \end{gathered}

at x=2


\begin{gathered} f(x)=8 \\ 4a+2b=8-14 \\ 4a+2b=-6 \end{gathered}

a=1/2

So correct option is (c).

User Ian Kelling
by
6.8k points