1 Answer

TheSalamov · Answer 1 · 2023-03-03T16:56:56+0000

Problem:

Let's denote the age of a child by x. Then if a child can only enter the jumping castle if he/she is less than 15 years old, this means that:

$x\text{ }\leq15$

That is equivalent to the interval

$(-\infty,15\rbrack$

But the age of the child cant be negative so the correct interval would be:

$(0,15\rbrack$

0 does not belong to the interval because a child with 0 years does not exist. So the graph for the above inequality is:

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