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S4 Quadratic Equation

Authored by Terrence Wong

Mathematics

10th Grade

CCSS covered

Used 8+ times

S4 Quadratic Equation
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9 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

對於  Ax2+Bx+C=0Ax^2+Bx+C=0  來說,下列哪項影響令我們不能運用二次公式?

A = 0

B = 0

C = 0

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

下列哪條是解二次方程 Ax2+Bx+C=0Ax^2+Bx+C=0  的二次公式?

 x=B±B24AC2Cx=\frac{-B\pm\sqrt{B^2-4AC}}{\text{2}C}  

 x=B±A24BC2Ax=\frac{-B\pm\sqrt{A^2-4BC}}{2A}  

 x=B±B24AC2Ax=\frac{-B\pm\sqrt{B^2-4AC}}{\text{2}A}  

 x=B±A24BC2Cx=\frac{-B\pm\sqrt{A^2-4BC}}{2C}  

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

下列哪項關於判別式( Δ\Delta  )必定正確?

 Δ>0\Delta>0  表示方程有兩個實根。

 Δ<0\Delta<0  表示方程有兩個實根。

 Δ=0\Delta=0  表示方程只有一個實根。

 Δ0\Delta\ge0  表示方程必有實根。

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

下列哪項不是解二次方程 Ax2+Bx+C=0Ax^2+Bx+C=0  的方法?

因式分解法。

用二次公式。

兩邊取平方根法。

用正弦公式。

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

A

B

C

D

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

CCSS.HSA.APR.A.1

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

A

B

C

D

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

CCSS.HSA.APR.A.1

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

A

B

C

D

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

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