
正比與反比

Quiz
•
Mathematics
•
7th Grade
•
Medium
Vincent Tuan
Used 2+ times
FREE Resource
30 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
正比
反比
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
已知兩變數x、y滿足4x+3y=0,則x和y的關係為何?
正比
反比
3.
MULTIPLE SELECT QUESTION
1 min • 1 pt
已知x和y滿足y=3x,下列敘述何者正確?(應選2項)
x和y都是變數
x和y成反比
x和y成正比
x的值是y值的3倍
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪一個式子代表「x和y成正比」?
y=7x+2
-5xy=3
7x=2y
y=20
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列x與y的關係式中,何者的x與y成反比?
y=21x
y=x-11
4x=3y
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列何者可以表示y與x成正比?
y=2x-1
x=3y+1
4x=3y
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
面積為40平方公分的長方形,它的長為x公分、寬為y公分。則可列成關係式為何?
y=40+x
y=40-x
xy=40
y=40x
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