What is wrong with this Chat?
idk how does it work
that is mean
it dosnt update automatically.
i hav to refresh the page again & again! :/
oh well wat grade u in
could u poss help me
12. Sure.
wht about u?
11th and its in algebra 2
sure, yr ques?
hang on let me type it all the way out
waiting.
ok lol dont be pushy
what is the standard equation for a porabola
y=ax^2+bx+c
http://www.mathwarehouse.com/geometry/parabola/standard-and-vertex-form.php
A parabola has an equation of x 2 + 4y = 0. What is the equation of the directrix
that 2 is a squared i only have more questions left including this one can u please help me
that 2 is a squared i only have more questions left including this one can u please help me
x^2 = -4ay is in standard form; where a is the measure from vertex to directix
since there are no values modifying the x and y; the vertex should be at the origin
but what does y equal
the parabola looks to open down so the directix would be above it
y = 1 should be the equation for the directix if I see it right
err... y = -1, might be better
the choices that it gives us are -1 then 0 , 4 2
ok
A parabola has an equation of 7x 2 = 28y. What is the coordinate of the focus?
4a = 28; a = 7 it is 7 away from the vertex in the direction that it opens up
let me rethink that ... the 7 is throwing me off :)
ok
is (0,1) an option for us?
yers the last two on my hw are true false and can u help me with those
yers the last two on my hw are true false and can u help me with those
i can try :)
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