What is the standard form of the equation of a circle whose diameter is 8 units and whose center is (2,−4)?
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The center of a hyperbola is (−3,2). The length of the conjugate axis is 8 units, and the length of the transverse axis is 12 units. The transverse axis is parallel to the y-axis.
What is the equation of the hyperbola in standard form?
___-___=1
The vertex of a parabola is (6,2), and the equation of its directrix is x = 8.
What is the equation of this parabola in standard form?

The endpoints of a diameter of a circle are (2,4) and (−4,7).
What is the standard form of the equation of this circle?

(x__)^2+(y__)^2=