Carry on too big?

I’ll be flying domestically this month for the first time ever. I know the dimensions for Alaskan airline are supposed to be 22x14x9, but I have a “carry on” suitcase that measures 22.75x15x9.75 with wheels and handles included. I’m mainly worried about the overhead and whether it will fit. Would this fit in the overhead and should I be worried that they’ll check it even if the measurements are slightly larger?