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Mathematics 17 Online
OpenStudy (anonymous):

Find the vertex of the following function. f(x) = -2x2 - 4x

OpenStudy (binary3i):

|dw:1410899879578:dw| at vertex the slope of the graph is zero.

OpenStudy (anonymous):

so the vertex is (-2,0)

OpenStudy (binary3i):

my diagram is wrong. graph cuts the X axis at 0 and -2(not -4) |dw:1410900247861:dw|

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