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 one year ago
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
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

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

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

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

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

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

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

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

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

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

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

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

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

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