Frequent Questions about our Solver

The problem

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What's that symbol next to y and 31/2

Answer provided by our tutors

I am assuming you mean the symbol next to 31/2 in the interval:


It is the symbol for infinity (often used in math).

This means that the solution to the inequality for 'y' is the open interval of all the numbers larger than 31/2 up to infinity.  

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