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Write the standard form of the equation of the circle described below. (6,-7) r=9

Write The Standard Form Of The Equation Of The Circle Described Below 67 R9 class=

Sagot :

Solution

Step 1

write out the expression for the equation of a circle

[tex](x-h)^2+(y-k)^2=r^2[/tex]

Where the centers are (h,k)

h = 6

k = -7

r = 9

Step 2

Write out the required equation of the circle using the parameters

[tex]\begin{gathered} \text{The required equation thus is} \\ (x-6)^2+(y-(-7))^2=9^2 \\ (x-6)^2+(y+7)^2=81_{} \end{gathered}[/tex]

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