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南一國中數學1下ch2-1

Authored by 數學 南一

Mathematics

7th Grade

Used 8+ times

南一國中數學1下ch2-1
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10 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

已知ab為整數,且a<0,b<0,則P ( 3a , 3b ) 在哪一象限?

第一象限

第二象限

第三象限

第四象限

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

已知坐標平面上八個點:A ( 0 , 0 )、B ( 0 ,-5 )、C ( 1 ,-3 )、D ( 8 , 0 )、E ( 5 , 4 )、F (-2 , 7 )、G (-9 ,-5 )、H (-6 , 0 ),以下列哪兩點為端點的線段,不會與兩坐標軸各有一個交點?

AC

BH

DG

EF

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

( 1 , 3 )

( 1 ,-1 )

(-1 , 2 )

(-2 , 1 )

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

有一隻螞蟻在坐標平面上作等速直線運動,由點A (-6 ,-2 )前進,到B ( 6 ,-8 )只需6秒。若螞蟻前進方向及速度不變,繼續由B點再走7秒到C點,則C點坐標為下列何者?

( 18 ,-13 )

( 19 ,-14 )

( 20 ,-15 )

( 21 ,-16 )

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

坐標平面上,點( a , b )在x軸上,也在y軸上,則下列敘述何者正確?

a=0,b≠0

a≠0,b=0

a=0,b=0

a≠0,b≠0

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

若( a , b )在坐標平面的第四象限,則下列何者恆為正數?

ab

ab

a2b2

ab

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

ab為整數,若點P ( a , b )在第二象限內,則下列何者正確?

| a |+| b |=| ab |

| ab |>| ab |

| a |+| b |>| ab |

| ab |<| ab |

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