How to Find the Maximum or Minimum Value of Quadratic Functions

This algebra math tutorial explains how to find the minimum or maximum value of a quadratic function given in standard form and vertex form by finding the vertex.
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[@b3anbagt1]

simple and efficient, beautiful work.

[@toxicgaming6539]

bro good job

[@princessdaisy6]

OMG THANK YOU

[@Double_Raptor]

Very helpful. I appreciate your hard work.

[@yixyaxo]

thank u :,)

[@n.ie.o-mi]

At 3:59, can someone tell me why 7 is the minimum value instead of 2?

[@gotutormaths]

The minimum or maximum value of a quadratic function is always the Y-coordinate of the vertex, not the X-coordinate. In this example, the vertex is (2, 7), so the minimum value is 7. The X-coordinate (2) tells us where this minimum occurs, but the actual minimum value is the Y-coordinate, which is 7.

[@n.ie.o-mi]

@@gotutormaths Thank you so much for helping me understand this!

[@smokedavocados]

Is h always the opposite value of h inside the parentheses? Thank you so much, btw! It was very helpful. ❤

[@gotutormaths]

Yes, h is always the opposite of the number inside the parentheses. You welcome, and glad it helps.