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南一國中數學3下ch1-1

Authored by 數學 南一

Mathematics

9th Grade

Used 9+ times

南一國中數學3下ch1-1
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10 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

y=-( x-1 )2+1圖形的頂點為( m , n ),則mn=?

0

1

2

-1

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

二次函數y=-2 ( x+3 )2-1的圖形向右平移2個單位,再向下平移4個單位後,會與下列哪一個圖形完全疊合?

y=-2 ( x+5 )2-5

y=-2 ( x+1 )2-5

y=2 ( x+5 )2-5

y=2 ( x+1 )2-5

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

下列二次函數中,何者的圖形開口向上?

y=-x2

y=6x2

y=-2x2

y=-3x2-7

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

下列選項為四個頂點相同、開口朝下的二次函數圖形,且各有一條水平線通過並與這些圖形相交於兩點,每個圖形同時標示出兩交點間的距離,及頂點到水平線間的垂直距離。試根據這些條件判斷何者開口最大?

Media Image
Media Image
Media Image
Media Image

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

直線y=3與下列哪一個拋物線圖形之交點的兩點距離最大?

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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如附圖,A是拋物線y=3x2上的一點,四邊形ABOC為矩形。若此矩形的周長為60,則此矩形的面積為多少?

30

36

68

81

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

新兵跳傘訓練,孫排長跳傘示範。如附圖,若降落傘側面為拋物線,且通過 ( 0 , 32 )、(-3 , 13 )、( 3 , 13 ) 三點,降落傘向左平移15個單位,向下平移25個單位才落地,則此時降落傘頂點P的坐標為何?

(-15 , 7 )

(-15 ,-25 )

(-10 , 7 )

(-7 ,-25)

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