Question

淳💖

想問一下b為什麼>0

3.7
) 4. 若f(x)=ax²+bx+c的圖形如右圖所示,
則下列選項中哪些值為正數?
(Na
118) b
L3b²-4ac
(4)a-b+c
(5) 4a+2b-3c
25
fixo-a (X²)X(X-²/³)
=A[X² 5
a(x²
2X=2x+
ķ
Zx+
= a (x²-3x + 2)
S
4
-1 off

Answer 1

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