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MoreFlares
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Can anyone explain how to solve this problem? If you would like any graphic design work or video editing in exchange for a lesson I am a graphic designer. Skype: mrpfister229
Suppose a parabola has vertex (–4, 7) and also passes through the point (–3, 8). Write the equation of the parabola in vertex form
 one year ago
 one year ago
MoreFlares Group Title
Can anyone explain how to solve this problem? If you would like any graphic design work or video editing in exchange for a lesson I am a graphic designer. Skype: mrpfister229 Suppose a parabola has vertex (–4, 7) and also passes through the point (–3, 8). Write the equation of the parabola in vertex form
 one year ago
 one year ago

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MoreFlares Group TitleBest ResponseYou've already chosen the best response.2
This is the question if the that format threw you off  Suppose a parabola has vertex (–4, 7) and also passes through the point (–3, 8). Write the equation of the parabola in vertex form
 one year ago

asnaseer Group TitleBest ResponseYou've already chosen the best response.3
do you know what the vertex form for a parabola looks like?
 one year ago

MoreFlares Group TitleBest ResponseYou've already chosen the best response.2
y = a(xh)^2 +k
 one year ago

asnaseer Group TitleBest ResponseYou've already chosen the best response.3
good  now in this form (h, k) represent the coordinates of the vertex
 one year ago

MoreFlares Group TitleBest ResponseYou've already chosen the best response.2
If I click best response does it say I understand now? or is t just best response so far
 one year ago

asnaseer Group TitleBest ResponseYou've already chosen the best response.3
and you have been given those in the question
 one year ago

asnaseer Group TitleBest ResponseYou've already chosen the best response.3
(its just best response so far)
 one year ago

asnaseer Group TitleBest ResponseYou've already chosen the best response.3
(you would click on Close to close the question once you are satisfied with any answer)
 one year ago

MoreFlares Group TitleBest ResponseYou've already chosen the best response.2
oh ok, so are you explaining to me how to do this problem itself or just a over view of this concept?
 one year ago

asnaseer Group TitleBest ResponseYou've already chosen the best response.3
I am trying to /guide/ you to the solution :)
 one year ago

MoreFlares Group TitleBest ResponseYou've already chosen the best response.2
alright awesome :)
 one year ago

asnaseer Group TitleBest ResponseYou've already chosen the best response.3
so your first step is to identify what values to substitute for h and k. can you tell me what they should be?
 one year ago

MoreFlares Group TitleBest ResponseYou've already chosen the best response.2
So the Vertex is: (4,7) and a point it passes through is (3,8)
 one year ago

MoreFlares Group TitleBest ResponseYou've already chosen the best response.2
So h is 4
 one year ago

MoreFlares Group TitleBest ResponseYou've already chosen the best response.2
and k is 7?
 one year ago

asnaseer Group TitleBest ResponseYou've already chosen the best response.3
correct  well done! now next step is to substitute those values into the equation.
 one year ago

MoreFlares Group TitleBest ResponseYou've already chosen the best response.2
y = a(x+4)^2 +7 (I changed the 4 to a positive, would that be correct since it was already a negative?)
 one year ago

asnaseer Group TitleBest ResponseYou've already chosen the best response.3
perfect! now notice that you just have one unknown left  the variable 'a'
 one year ago

MoreFlares Group TitleBest ResponseYou've already chosen the best response.2
So solve for a? :/ or would I somehow sub in either the 3 or 8?
 one year ago

asnaseer Group TitleBest ResponseYou've already chosen the best response.3
you are thinking along the right lines  substitute the values for x and y that are given to you (3, 8) into the equation and use that to find 'a'
 one year ago

MoreFlares Group TitleBest ResponseYou've already chosen the best response.2
or would I sub that in for x,y? to solve for a
 one year ago

asnaseer Group TitleBest ResponseYou've already chosen the best response.3
have you solved for 'a' yet?
 one year ago

MoreFlares Group TitleBest ResponseYou've already chosen the best response.2
using PEMDAS
 one year ago

asnaseer Group TitleBest ResponseYou've already chosen the best response.3
bingo! so what is your final equation?
 one year ago

MoreFlares Group TitleBest ResponseYou've already chosen the best response.2
Im kinda confuesed now haha :/ do plug in 1 for a in this equation? 8=1(3+4)^2+7
 one year ago

asnaseer Group TitleBest ResponseYou've already chosen the best response.3
you need to plugin a=1 into this equation:\[y=a(x+4)^2+7\]
 one year ago

MoreFlares Group TitleBest ResponseYou've already chosen the best response.2
So y = (x + 4)^2 + 7
 one year ago

asnaseer Group TitleBest ResponseYou've already chosen the best response.3
the one you just gave was using the fact that it passes through the point (3, 8), so you had substituted x=3 and y=8 to solve for a.
 one year ago

asnaseer Group TitleBest ResponseYou've already chosen the best response.3
yes  that is the correct final answer. well done again :)
 one year ago

MoreFlares Group TitleBest ResponseYou've already chosen the best response.2
What did you mean by this? the one you just gave was using the fact that it passes through the point (3, 8), so you had substituted x=3 and y=8 to solve for a.
 one year ago

asnaseer Group TitleBest ResponseYou've already chosen the best response.3
up there when you said: Im kinda confuesed now haha :/ do plug in 1 for a in this equation? 8=1(3+4)^2+7
 one year ago

MoreFlares Group TitleBest ResponseYou've already chosen the best response.2
and thank you so much for your help! :)
 one year ago

MoreFlares Group TitleBest ResponseYou've already chosen the best response.2
oh yeah
 one year ago

MoreFlares Group TitleBest ResponseYou've already chosen the best response.2
yh :D (you're helpful) lol
 one year ago

asnaseer Group TitleBest ResponseYou've already chosen the best response.3
my pleasure :D
 one year ago

MoreFlares Group TitleBest ResponseYou've already chosen the best response.2
Can I give you any ratings?
 one year ago

MoreFlares Group TitleBest ResponseYou've already chosen the best response.2
stars? feedback? cause you deserve it
 one year ago

asnaseer Group TitleBest ResponseYou've already chosen the best response.3
this site is using the concept of SmartScore. So as you ask and help out with other peoples questions, your smartscore goes up. It's actual calculation is a mystery but it basically depends on how helpful you are on this site, how much you engage with other users, etc.
 one year ago

asnaseer Group TitleBest ResponseYou've already chosen the best response.3
and thank YOU for your kind comments  it is always a pleasure to teach someone who really appreciates "learning".
 one year ago

MoreFlares Group TitleBest ResponseYou've already chosen the best response.2
Oh no problem :) and I bet you developed the formula for the calculations :P "Ask a question: Can anyone develop a top secret and mysterious formula for this site? We're are going to need a genius!!! lol
 one year ago

asnaseer Group TitleBest ResponseYou've already chosen the best response.3
lol! No it wasn't me  the Admins of this site take care of that aspect.
 one year ago
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