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中二數學溫習-二元一次方程-圖解法

Authored by Clarence Chen

Mathematics

8th Grade

Used 11+ times

中二數學溫習-二元一次方程-圖解法
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14 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

(2 , 2) 是否方程3x - 2y = 1 的解?

Yes

No

Answer explanation

將 x = 2,y = 2 代入方程

3x - 2y = 1

左邊 = 3(2) - 2(2) = 2

右邊 = 1

左邊 不等於 右邊

所以 (2,2)不是方程的解。

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

(-2 , 2) 是否方程x + 2y = 1 的解?

Yes

No

Answer explanation

將 x = -2,y = 2 代入方程

x + 2y = 1

左邊 = (-2) + 2(2) = 2

右邊 = 1

左邊 不等於 右邊

所以 (-2,2)不是方程的解。

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

(-1 , 1) 是否方程x + 2y = 1 的解?

Yes

No

Answer explanation

將 x = -1,y = 1 代入方程

x + 2y = 1

左邊 = (-1) + 2(1) = 1

右邊 = 1

左邊 等於 右邊

所以 (-1,1)是方程的解。

4.

DRAG AND DROP QUESTION

1 min • 1 pt

Media Image

根據下列圖像,求​聯立方程的解。

x = ​ ​ (a)  

y = ​ (b)  

​ ​

1
3
2
-1
0

5.

DRAG AND DROP QUESTION

1 min • 5 pts

Media Image

下列為某組聯立方程的圖像。寫出該聯立方程的解。

x = ​ ​ (a)  

y = ​ (b)  

2
1
3
4
0

6.

DRAG AND DROP QUESTION

1 min • 5 pts

Media Image

根據圖像,求該聯立方程的解。

x = ​ (a)  

y = ​ (b)  

1
0
2
-1

7.

DRAG AND DROP QUESTION

1 min • 5 pts

Media Image

根據圖像,求該聯立方程的解。

x = ​ (a)  

y = ​ (b)  

2
1
3
0
4

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