2下 2-1 函數與函數圖形

2下 2-1 函數與函數圖形

8th Grade

10 Qs

quiz-placeholder

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2下 2-1 函數與函數圖形

2下 2-1 函數與函數圖形

Assessment

Quiz

Mathematics

8th Grade

Medium

Created by

康軒數位 康軒數位

Used 12+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

y=3(x-2)+1,則下列函數的值何者錯誤

x=-2時,函數值為-11

x=-1時,函數值為-8

x=0時,函數值為4

x=4時,函數值為7

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

若函數y=(k2-9)x2+3xk-3的圖形通過原點,則在x=-2時,函數值y=?

-4

-5

-6

-7

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

常數函數y的圖形通過(-8 , 3),則y的圖形也會通過下列哪一點?

(-8 , 0)

(0 , 3)

(8 , 0)

(0 , -3)

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

a為已知數,若y=(a-2)x2+(3a+1)x+4為x的一次函數,則在x=1時,函數值y=?

7

11

14

21

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

某行動電話業者所設定的通話費率為:每月基本費88元,基本費可抵300秒的通話費,超過300秒的部分每秒加收0.2元。若本月分阿勇的通話秒數為x秒(x>300),通話費用為y元,則xy的關係式為下列何者?

y=88+0.2x-300

y=0.2x-300-88

y=88+0.2x

y=88+0.2(x-300)

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

某校段考結束後,由於同學的數學成績不理想,所以老師決定用一次函數來調整分數。只知道芯澄原來40分,調整後為55分;德德原來44分,調整後為61分,那麼珠珠原來56分,調整後的分數為何?

56

65

74

79

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

a<0、b>0,則函數yaxb的圖形不通過哪一象限?

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