The Vertex Form of Quadratic Functions - Nerdstudy
EDIT: @2:27 we should have a checkmark beside minimum. Not maximum. Our video compositor made a mistake on this one and he has apologized and volunteered to do 50 jumping jacks to make up for this sinful mistake =P
If the parabola is opening up, we are looking at a minimum.
If the parabola is opening down, we are looking at a maximum.
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Find out about the what it means to write a quadratic equation in the vertex form!