Question 1054723: Write the equation of each given circle in standard form, and determine the center and radius if it exists. The determine the appropriate window?
21) 2x^2+2y^2-4x-5=0
23) 3x^2-12x+ 18y+15=0
Write the given equation in standard form. Determine if the graph of the equation is a circle, a point, or neither?
27) x^2+y^2+3x-5y+7=0
33)3x^2+3y^2+12x-4y-20=0
41) Find an equation of the circle that has its center at (-5,2) and passes through the point (-3,4).
43) The two points(3,5) and (7,-3) are the endpoints of the diameter of a circle. Write the equation of the circle in standard form.
Determine the focus and directrix of the given parabola and sketch the graph
5) x^2+5y=0
13) Axis is the y-axis, and the parabola passes through the point (4,-2)
17) Focus at (-1,0) and directrix x= 1
Answer by Fombitz(32388)   (Show Source):
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