When b=0
f(x)=ax^2+c
test each
A. with x^2-1, A is false
B. with -x^2-1, B is false
C. cannot find contradiction
D. the axis is actually x=0, 0 is nithere positive nor negative, false
answer is C
Yea you did jsixidjdjiejs
Step-by-step explanation:

Answer:
n=-3/4
Step-by-step explanation:
<span>it is the letter b because if you count closly you will see
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