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Haleyy_Bugg
Group Title
The graph of which quadratic equation is shown below?
y = x^2 + 2x − 8
y = x^2 − 2x − 8
y = −x^2 − 2x + 8
y = −x^2 − 4x − 8
 one year ago
 one year ago
Haleyy_Bugg Group Title
The graph of which quadratic equation is shown below? y = x^2 + 2x − 8 y = x^2 − 2x − 8 y = −x^2 − 2x + 8 y = −x^2 − 4x − 8
 one year ago
 one year ago

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Haleyy_Bugg Group TitleBest ResponseYou've already chosen the best response.0
@Notamathgenius
 one year ago

Notamathgenius Group TitleBest ResponseYou've already chosen the best response.0
Hmm not sure D:
 one year ago

MathCurious Group TitleBest ResponseYou've already chosen the best response.0
Does the graph of x^2 open up or down? How about x^2? :)
 one year ago

cwrw238 Group TitleBest ResponseYou've already chosen the best response.0
as its x^2 it will be open downwards like C and D
 one year ago

MathCurious Group TitleBest ResponseYou've already chosen the best response.0
f(x) + C will affect the position on the y axis. Take this fact into consideration.
 one year ago

cwrw238 Group TitleBest ResponseYou've already chosen the best response.0
yup the intercept on yaxis is when x = 0
 one year ago

MathCurious Group TitleBest ResponseYou've already chosen the best response.0
dw:1368631726428:dw can you find the x intercepts?
 one year ago

MathCurious Group TitleBest ResponseYou've already chosen the best response.0
you should know the answer from this
 one year ago

Haleyy_Bugg Group TitleBest ResponseYou've already chosen the best response.0
I dont
 one year ago

MathCurious Group TitleBest ResponseYou've already chosen the best response.0
ok, set everything I drew above to zero, that is like saying: When is Y zero? When Y is zero it touches the xaxis
 one year ago

MathCurious Group TitleBest ResponseYou've already chosen the best response.0
it is zero when x = 2 and when x = 4
 one year ago

Haleyy_Bugg Group TitleBest ResponseYou've already chosen the best response.0
So the answer is...?
 one year ago

MathCurious Group TitleBest ResponseYou've already chosen the best response.0
So then the answer is y = −x^2 − 2x + 8 I factored out the negative sign above.
 one year ago

MathCurious Group TitleBest ResponseYou've already chosen the best response.0
look at your graph, it's consistent with this
 one year ago

MathCurious Group TitleBest ResponseYou've already chosen the best response.0
Make sense? :)
 one year ago

MathCurious Group TitleBest ResponseYou've already chosen the best response.0
lol, just looking for someone to do your homework without effort, eh?
 one year ago
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