Mathematics
6 Online
OpenStudy (anonymous):
anyone super smart and good at maths care to help please?
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OpenStudy (anonymous):
vertex of the graph y-4=(x+1)^2
OpenStudy (anonymous):
@Secret-Ninja
OpenStudy (anonymous):
@gorv yes please this is the question i need help with :)
OpenStudy (gorv):
what is vertex of y=x^2 ???
OpenStudy (gorv):
@Frazfootballa
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OpenStudy (anonymous):
im not sure tbh
OpenStudy (gorv):
(0,0) isn't it???
OpenStudy (anonymous):
x=0 right
OpenStudy (gorv):
if we shift it to (-1,4) what will happen???
OpenStudy (anonymous):
downward slope?
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OpenStudy (gorv):
yeah..vertex is changed to (-1,4) now
OpenStudy (gorv):
equation will be
y-4=(x-(-1))^2
OpenStudy (gorv):
so vertex is (-1,4)
OpenStudy (gorv):
@Frazfootballa
OpenStudy (anonymous):
@gorv thank you :) could you possibly help me find What are the x-intercepts for the graph of another equation please?
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OpenStudy (anonymous):
y=3(x+1)(x-6)
OpenStudy (gorv):
x intercept means value of x when y=0
OpenStudy (anonymous):
the value of x when y is 0
OpenStudy (anonymous):
if y=3(x+1)(x-6) how would i figure that part out
OpenStudy (gorv):
0=3(x+1)(x-6)
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OpenStudy (gorv):
that is
(x+1)(x-6)=0
OpenStudy (anonymous):
ok im understanding that
OpenStudy (anonymous):
im not lost yet :P
OpenStudy (gorv):
so it means it will be zero only when
x=-1 or x=6
OpenStudy (anonymous):
x=-1 and x=6 ?
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OpenStudy (gorv):
yeah the x intercept
OpenStudy (gorv):
value of x
OpenStudy (anonymous):
(-1,0) and (6,0)
OpenStudy (anonymous):
would it look like that?
OpenStudy (anonymous):
or (0,-1) and (0,6)?
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OpenStudy (anonymous):
Thanks again for all your help