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emily_ann18
Group Title
Write the standard equation for the circle that passes through the points (1, 1), (1, 3), and (9, 2).
 one year ago
 one year ago
emily_ann18 Group Title
Write the standard equation for the circle that passes through the points (1, 1), (1, 3), and (9, 2).
 one year ago
 one year ago

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samnatha Group TitleBest ResponseYou've already chosen the best response.0
use the formula of x^2 + y^2 + 2gx + 2fy + c = 0
 one year ago

emily_ann18 Group TitleBest ResponseYou've already chosen the best response.0
x 2 + y 2 + dx + ey + f = 0 this is the formula i have to use
 one year ago

samnatha Group TitleBest ResponseYou've already chosen the best response.0
oh we were taught to use a diff formula but i suppose it still the same u get your first point and label it x and y then u sub the point into the equation so your first one would look like this (1)^2 + (1)^2 + d(1) + e(1) + f = 0
 one year ago

emily_ann18 Group TitleBest ResponseYou've already chosen the best response.0
ok i understand that much but I don't understand when it gets to the point of putting the answers of e and d and f back into the problem
 one year ago

samnatha Group TitleBest ResponseYou've already chosen the best response.0
so after you have done that with each point u get three equations...then its basically just like three simultaneous equations and you get the answer by process of elimination
 one year ago

samnatha Group TitleBest ResponseYou've already chosen the best response.0
then once you have e, d ans f u just sub it in to your original equation of x^2 + y^2 + dx + ey + f = 0
 one year ago
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