【中1】4章 変化と対応❶
Quiz
•
Mathematics
•
7th - 9th Grade
•
Medium
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6 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(ア)と(イ)
(イ)と(ウ)
(ア)と(ウ)
すべて関数である。
Answer explanation
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
yをxの式で表しなさい。
【問題】
52円切手をx枚買った
ときの代金y円
y=52x
y=52/x
y=x+52
y=x-52
Answer explanation
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
yをxの式で表し、
比例定数を答えなさい。
【問題】
底辺が8、高さxの
三角形の面積y
y=8x 比例定数8
y=4x 比例定数4
y=8x 比例定数8x
y=4x 比例定数4x
Answer explanation
比例定数は、
xの係数のみ答える。
(例)y=5xの場合、5
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
❶8 ❷0 ❸-6
❶-8 ❷1 ❸6
❶8 ❷0 ❸6
❶-8 ❷1 ❸-6
Answer explanation
表の計算は、
y=ー2×( )
の計算【代入】を
しよう^^
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
次のxとyの関係を式に表したときの、「 比例定数 」を答えなさい。
❐yはxに比例し、
x=8のときy=32である。
Answer explanation
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
次のxとyの関係を式に表したときの「 比例定数 」を答えなさい。
❐yはxに比例し、x=-4のとき、y=40である。
Answer explanation
よって
比例定数は「 -10 」
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