(7,2)

(3,2)

(2,7)

(2,3)

(-1.5,-6)

(1.5,6)

(6,1.5)

(-6,-1.5)

$$x^2+y=9$$  

$$\left(x-1\right)^2+x^2=4$$  

$$x^2+\left(y-1\right)^2=1$$  

$$\left(x-1\right)^2-\left(y-1\right)^2=16$$  

$$\left(x-1\right)^2+\left(y-1\right)^2=1$$   

$$\left(x+1\right)^2+y^2=4$$  

$$x^2+y^2=16$$  

$$\left(x+3\right)^2+y^2=25$$  

$$\left(x+1\right)^2+\left(y-2\right)^2=36$$  

$$\left(x-2\right)^2+\left(y+1\right)^2=25$$  

$$x^2+y^2=6$$  

$$x^2+y^2=49$$  

$$\left(x-3\right)^2-\left(y-5\right)^2=16$$  

$$\left(x+3\right)^2+\left(y+5\right)^2=16$$  

$$\left(x+3\right)^2-\left(y+5\right)^2=16$$  

$$\left(x-3\right)^2+\left(x-5\right)^2=16$$  

$$\left(x-9\right)^2+\left(y-6\right)^2=144$$  

$$\left(x-6\right)^2+\left(y-9\right)^2=169$$  

$$\left(x-9\right)^2+\left(y-6\right)^2=169$$  

$$\left(x-6\right)^2+\left(y-9\right)^2=144$$  

$$\left(x-1\right)^2+\left(y+1\right)^2=9$$  

$$\left(x+1\right)^2+\left(y-1\right)^2=1$$  

$$\left(x-1\right)^2+\left(y+1\right)^2=1$$  

$$\left(x+1\right)^2+\left(y-1\right)^2=9$$  

$$\frac{\left(x+h\right)^2}{a^2}+\frac{\left(y+k\right)^2}{b^2}=1$$  

$$\frac{\left(x-h\right)^2}{a^2}+\frac{\left(y-k\right)^2}{b^2}=r^2$$  

$$\frac{\left(x-h\right)^2}{a^2}-\frac{\left(y-k\right)^2}{b^2}=1$$  

$$\frac{\left(x-h\right)^2}{a^2}+\frac{\left(y-k\right)^2}{b^2}=1$$  

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(แนวนอน)

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(แนวตั้ง)

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(แนวนอน)

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(แนวตั้ง)

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(แนวนอน)

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(แนวตั้ง)

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