What is the vertex of the function f(x) = 7x2 - 28x - 60? (2, -88) (3, 56) (2, 88) (3, -56) confuse...

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What is the vertex of the function f(x) = 7x2 - 28x - 60? (2, -88) (3, 56) (2, 88) (3, -56) confuse...

Mathematics
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At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

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use \(\dfrac{-b}{2a}\)
-28 b?
and 7 a?

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Other answers:

\(\dfrac{-(-28)}{2*7}\)
\(\dfrac{28}{14}=2\)
28/14=2
the plug 2 into the equation for x
oh u did it before i could lol
2 is x?
\(f(2)=7*2^2 - 28*2 - 60\)
yes x=2
-88?
correct
2,-88
yup
good to see u back on too lol
:)
oh no, i dnt get the next one at all...post here or new post?
new?
wait i might be able to do it, let me post it and show my work before u comment to check it?
ok

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