how do you find the vertex of a problem using ti84?

Answer 1

first graph it in y=, then graph it. then figure out if the vertex would be a minimum or a maximum. then go to 2nd - trace and do either minimum or maximum. then set left bound and left bound(just a little to the left and a little to the right) and a guess at what you think the vertex is, and it will give you the vertex.

have yourself a good day.