Mathematics
21 Online
OpenStudy (anonymous):
find the vertex -2(x+7)^2+6
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OpenStudy (saifoo.khan):
y = 6 at x = -7
OpenStudy (anonymous):
thank you. getting close..!
OpenStudy (saifoo.khan):
:)
OpenStudy (anonymous):
how would I put that as an ordered pair I want to be sure im doing it right
OpenStudy (saifoo.khan):
Alphabetically x comes first, so x first then y.
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OpenStudy (anonymous):
ok thank you lol
OpenStudy (saifoo.khan):
uw.
OpenStudy (anonymous):
how do I do this? I want to see the steps b/c im sure i can do it bms x^2+45=12x
OpenStudy (anonymous):
solve for x
OpenStudy (saifoo.khan):
i do them all directly from my Calculator!
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OpenStudy (saifoo.khan):
x = 6-3 i
x = 6+3 i
OpenStudy (anonymous):
ok nvm lol go a head what is i?
OpenStudy (anonymous):
infinity lol
OpenStudy (saifoo.khan):
its an imaginary number!
OpenStudy (anonymous):
o
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OpenStudy (anonymous):
9x^2+6x+1 y and x intercetps
OpenStudy (saifoo.khan):
y int = 1
OpenStudy (anonymous):
1? not 100 ?
OpenStudy (saifoo.khan):
ONE, lol.
x int = -1/3
OpenStudy (anonymous):
x^2+4x+4=25 ex and app solutions
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OpenStudy (saifoo.khan):
ex? :o
OpenStudy (anonymous):
exact and approximate
OpenStudy (anonymous):
hey here is an easy one checking my work a=3s^2 solve for s wouldnt it be sqrt a/3 or negative a/3
OpenStudy (saifoo.khan):
\[\r =\sqrt{\frac{a}{3}}\]
OpenStudy (anonymous):
ok thats what I put!
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OpenStudy (saifoo.khan):
hmm.
OpenStudy (anonymous):
opening a new box so ic an give another medal
OpenStudy (saifoo.khan):
x = 7, x = 3
y = -21
OpenStudy (saifoo.khan):
Ok. ^^