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tmagloire1
 one year ago
AP Calculus AB Help!!! please help me on these two questions
1.For the curve given by 4x^2+y^2=48+2xy find the positive ycoordinate given that the xcoordinate is 2.
2.For the curve given by 4x^2+y^2=48+2xy show that there is a point P with xcoordinate 2 at which the line tangent to the curve at P is horizontal.
tmagloire1
 one year ago
AP Calculus AB Help!!! please help me on these two questions 1.For the curve given by 4x^2+y^2=48+2xy find the positive ycoordinate given that the xcoordinate is 2. 2.For the curve given by 4x^2+y^2=48+2xy show that there is a point P with xcoordinate 2 at which the line tangent to the curve at P is horizontal.

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tkhunny
 one year ago
Best ResponseYou've already chosen the best response.0Have you considered substituting x = 2 and solving for y?

tmagloire1
 one year ago
Best ResponseYou've already chosen the best response.0Is it that simple? I thought I might have to differentiate implicitly but i wasn't really sure where to start.

tmagloire1
 one year ago
Best ResponseYou've already chosen the best response.0Would plugging in x=2 work? or should i do the latter

tkhunny
 one year ago
Best ResponseYou've already chosen the best response.0No differentiation. There is no such thing as "plugging in". Try substitution.
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