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Which graph represents the function y = –2x² – 5? https://www.connexus.com/content/chrome/online/default.aspx?idSection=164909&idLesson=138060&idWebuser=532739
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@sydneyy your question requires login. Will you please post a snapshot of the graphs?
i can try..
ok:)
graph a
post all:)
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graph b
graph C
graph D
Ok \[y=-2x^2-5\] let's write this as \[y+5=-2x^2\] As there is - with x^2 so the graph will open down so either its b or d
Now if it were just \(y=-2x^2\) the graph's vertex would be at zero but here we have \[y+5=-2x^2\] when x=0 y=-5 so here the vertex is at (0,-5) so it's d
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thanks alot:)
Welcome:D
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