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Find domain and range I got it wrong so I want to see what I did wrong

Find domain and range I got it wrong so I want to see what I did wrong-example-1

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Check the picture below.

let's recall that the Domain is the extent to where the graph reaches horizontally, in this case it never left -5, so is neither less than or greater than -5, is simply just that one number because it never really changed.

For the Range, you're correct, kinda, it'd be -2 and 6 for the extent it goes vertically, however, let's notice the endpoints for the graph, it has a circle, or namely a "hole" at the end, a hole means it goes up but it doesn't include the end value, so, if we use -2 ⩽ y ⩽ 6, that means it includes -2 and 6, but it doesn't because of the holes, if the graph had solid circles like ●, then that means graph wise, that the endpoints are included.

Find domain and range I got it wrong so I want to see what I did wrong-example-1
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