Question

Which graph represents the function y = –2x² – 5?
https://www.connexus.com/content/chrome/online/default.aspx?idSection=164909&idLesson=138060&idWebuser=532739

Answer 1

@sydneyy your question requires login. Will you please post a snapshot of the graphs?

Answer 2

i can try..

Answer 3

ok:)

Answer 4

graph a

Answer 5

post all:)

Answer 6

graph b

Answer 7

graph C

Answer 8

graph D

Answer 9

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

Answer 10

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

Answer 11

thanks alot:)

Answer 12

Welcome:D