Use the interval notation to solve 3x+2>=2?
回答 (3)
2008-07-26 3:53 pm
✔ 最佳答案
3x + 2 >= 23x >= 2 - 2
3x >= 0
x >= 0/3
x>= 0
The equation is true for all values of x equal or greater than 0
If x = 0
3x + 2 >= 2
3(0) + 2 > = 2
2>=2
If x = 1
3(1) + 2 >= 2
3 + 2 >= 2
5 > 2
2008-07-26 10:56 pm
3x + 2 ⧠2
3x ⧠2 - 2
3x ⧠0
x ⧠0/3
x ⧠0
3x ⧠2 - 2
3x ⧠0
x ⧠0/3
x ⧠0
2008-07-26 10:52 pm
3x+2>2
3x>0
x must be positive
3x>0
x must be positive
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