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anonymous
 one year ago
Using a directrix of y = 2 and a focus of (2, 6), what quadratic function is created?
anonymous
 one year ago
Using a directrix of y = 2 and a focus of (2, 6), what quadratic function is created?

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AlexandervonHumboldt2
 one year ago
Best ResponseYou've already chosen the best response.1Focus: (2, 6) Any point, (x0 , y0) on the parabola satisfies the definition of parabola, so there are two distances to calculate: Distance between the point on the parabola to the focus Distance between the point on the parabola to the directrix \[\sqrt{(x_0a)^2+(y_0b)^2} \] \[\sqrt{(x_02)^2+(y_00)^2}\] y=2 dirextix Distance between point ( x0 , y0) and the line y=2 y_0+2 Equate the two expressions. \[\sqrt{(x_02)^2+(y_00)^2}=\left y_0+2 \right\] now solve this:

AlexandervonHumboldt2
 one year ago
Best ResponseYou've already chosen the best response.1square both sides: \[(x_02)^2+y_0^2=(y_0+2)^2\]

AlexandervonHumboldt2
 one year ago
Best ResponseYou've already chosen the best response.1simplify: \[x^22x+4+y^2=y^2+2y+4\]

AlexandervonHumboldt2
 one year ago
Best ResponseYou've already chosen the best response.1simplify: \[x^22x+44+y^2y^2=2y\]

AlexandervonHumboldt2
 one year ago
Best ResponseYou've already chosen the best response.1\[x^22x=2y\]

AlexandervonHumboldt2
 one year ago
Best ResponseYou've already chosen the best response.1\[y=\frac{ x^22x }{ 2 }\]

AlexandervonHumboldt2
 one year ago
Best ResponseYou've already chosen the best response.1i might have done a mistake though haven't made such question for long time

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0thats not any of my choices :/

AlexandervonHumboldt2
 one year ago
Best ResponseYou've already chosen the best response.1what are your choises?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[f(x)= \frac{ 1 }{ 8 } (x2)^{2}2\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[f(x)=\frac{ 1 }{ 16 } (x2)^{2}2\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0and then the same as the first except positive 1/8 and same as the second but negative 1/16

AlexandervonHumboldt2
 one year ago
Best ResponseYou've already chosen the best response.1OHHHHHHHHHHHHH i counted with focus (2, 0) not (2, 6) wait lemme redo it

AlexandervonHumboldt2
 one year ago
Best ResponseYou've already chosen the best response.1\[\sqrt{(x_02)^2+(y_06)^2}=\left y_0+2 \right\]

AlexandervonHumboldt2
 one year ago
Best ResponseYou've already chosen the best response.1\[(x_02)^2+(y_06)^2=(y_0+2)^2\]

AlexandervonHumboldt2
 one year ago
Best ResponseYou've already chosen the best response.1\[(x2)^2+y^212y+36=y^2+2y+4\]

AlexandervonHumboldt2
 one year ago
Best ResponseYou've already chosen the best response.1\[(x2)^2+32=14y\]

AlexandervonHumboldt2
 one year ago
Best ResponseYou've already chosen the best response.1woops mistake again

AlexandervonHumboldt2
 one year ago
Best ResponseYou've already chosen the best response.1(x2)^2+y^212y+36=y^2+4y+4

AlexandervonHumboldt2
 one year ago
Best ResponseYou've already chosen the best response.1(x2)^2+32=16y y=1/16*(x2)^2+2 i the answer if i again didn't made a mistake somewhere

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0thanks! ill let you know in 1 sec

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yep! it was right!! i got 100/100 on my quiz thanks!

AlexandervonHumboldt2
 one year ago
Best ResponseYou've already chosen the best response.1np sorry for taking so much time

AlexandervonHumboldt2
 one year ago
Best ResponseYou've already chosen the best response.1np sorry for taking so much time
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