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Home > AC > Chapter 12 > Lesson 12.4.4 > Problem 12-101

12-101.

Find the minimum (the lowest point) of the function . Explain how you know it is the lowest.

The vertex is the lowest point of a parabola.

The -coordinate of the vertex is halfway between the -intercepts.

Substitute the -coordinate of the vertex back into the equation to find the -coordinate.