Question 774300: please help express in interval notation x≥7 a. (-oo,7) b. [7,oo) c. (-oo,7] d. (7,oo)
Found 2 solutions by oscargut, solver91311:
Answer by oscargut(2103)   (Show Source):
Answer by solver91311(24713)  (Show Source):
You can put this solution on YOUR website!
The inequality is "greater than or equal", so it includes the lower endpoint, hence a square bracket at the lower end point. Your interval cannot contain a number smaller than 7.
By the way, do not try to approximate the infinity ) symbol with two lower case letter 'o's. Spell out infinity, or abbreviate it as inf or better, infty. For the other end of the number line, -infinity, or -inf or -infty
John
Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
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