all possible y -values all possible x -values The lowest or highest point of a parabola. Minimum: lowest point (bottom of the valley) Maximum: highest.

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Presentation transcript:

all possible y -values all possible x -values

The lowest or highest point of a parabola. Minimum: lowest point (bottom of the valley) Maximum: highest point (top of the mountain) What is happening at the end of the graph? “rising” or “falling”

A vertical line through the vertex…mirror image. Slope of a line between two points.

point where the graph crosses the y -axis “zeros”; point(s) where the graph crosses the x -axis

where the graph is going uphill… pressing the gas! where the graph is going downhill…Whee!!

(-1, 11) (0,5) (1,3) (2,5) (3,11)

y = - ½ (x + 3) 2 + 4