比較二次函數甲、乙、丙、丁圖形開口的大小關係為下列何者? 甲:y=-4x2 乙:y=-x2 丙:y=-2x2 丁:y=3x2

九下數學複習

Quiz
•
Mathematics
•
9th Grade
•
Medium
Zeng lei
Used 2+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(A) 甲<乙<丙<丁
甲<丁<丙<乙
乙<丙<丁<甲
乙<丙<丁<甲
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
投擲1顆均勻骰子,即骰子每一面出現的可能性都相等,則出現點數大於4的事件,它的機率是多少?
二分之一
三分之一
四分之一
五分之一
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
關於二次函數y=-(x-3)2+9的最大值或最小值,下列敘述何者正確?
當x=-3時,y有最小值9
當x=3時,y有最小值9
當x=-3時,y有最大值9
當x=3時,y有最大值9
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
若有一個十角椎,則這個角錐的面數為多少?
10
11
12
20
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
若生男生女的可能性相等,則一個家庭有兩個小孩時,則一男一女的機率是?
二分之一
三分之一
三分之二
四分之一
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
若投擲一顆公正的骰子兩次,則所有可能性共有幾種?
6種
12種
36種
2種
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
y=5(x-6)2的圖形的對稱軸為?
x=0
x= 5
x= 6
x= -6
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