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第二學期第一次段考數學科試題

Authored by 義文 黃

Mathematics

8th Grade

第二學期第一次段考數學科試題
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26 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

若y是x的函數,則下列敘述何者一定正確?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

已知一次函數y=ax+b,若y的值隨著x值的增大而減小,且ab<0,則在坐標平面上,下列何者可能是此函數的圖形?

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

有一座水池內部呈長方體,水深為500公分。劉均想要將水池內的水,以每30分鐘下降40公分的速率,等速放水5小時。若經過X分鐘後,水深為y公分,則下列哪一個圖形可以表示式x

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4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列何者不是線型函數?

y=2/3

y=(x-3)/4

y=1/x

y=5-x

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

如圖,設直線 L 為函數 y=ax+b 的圖形,請問 當x=0時的函數值是多少?

60

65

80

70

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

等差級數(-29)+(-25)+(-21)+......加到第幾項時,其和為最小?

第8項

第9項

第10項

第11項

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

當x=5時,一次函數y=2x+k與y=3kx-4的值相同,則此時的k值和y值分別為何?

1,11

-1,9

5,11

3,3

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