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If f(x) =ax^2+bx+c and f(1)=3 and f(-1)=...

If f(x) =`ax^2+bx+c` and f(1)=3 and f(-1)=3, then a+c equals

A

-3

B

0

C

2

D

3

Text Solution

Verified by Experts

The correct Answer is:
D
Substitute 1 for x to get a+b+c=3. Substitute -1 for x to get a a-b+c=3. {1}
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