Hi

 opening right and left along y = 3

C(1,3)

V(3,3) and V(-1,3)  ( 1+2  and 1-2)

c= sqrt(4+9) = sqrt(13)

Foci: f(1+√13, 3) and f(1-√13, 3)



Need to Know...............................................................

Standard Form of an Equation of a Circle is  

Standard Form of an Equation of an Ellipse is  

Standard Form of an Equation of an Hyperbola opening up and down is: 

Standard Form of an Equation of an Hyperbola opening right and  left is: 

the vertex form of a Parabola opening up(a>0) or down(a<0), 

 the vertex form of a Parabola opening right(a>0) or left(a<0), 

 

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