Describe the relation in words. (complete sentence)
1) (5,-4),(5,0),(5,3),(5,10)
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Write five order pairs and an equation for each relation.
2) The second number is 1 less than twice the first number.
3) The difference between the first and the second number is 4.
Thank you.
數學 Binary Relations
2013-01-20 11:28 pm
回答 (1)
2013-01-21 1:20 am
✔ 最佳答案
1If the painting is in Figure,they will make a straight line.
2
Let x be the first number.
Let y be the second number.
2x=y-1
3
Let x be the first number.
Let y be the second number.
x-y=4
如果把它們計
2x=y-1 --------- 1
x-y=4 ---------- 2
1:
2x=y-1
y=2x+1 -------------------- 3
2:
x-y=4
y=x-4 ------------------- 4
sub 3 into 4
2x=x-4
x=-4
sub x=-4 into 3
y=2x+1
y=-8+1
y=-7
參考: 自己try
收錄日期: 2021-04-13 19:16:53
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