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sergij07 [2.7K]
3 years ago
7

What is the equation of this circle in standard form?

Mathematics
2 answers:
viktelen [127]3 years ago
4 0
I hope this helps you

GuDViN [60]3 years ago
3 0

Answer:

Standard equation of circle:

(x-\frac{11}{2})^2+(y-4)^2=12.25

Step-by-step explanation:

Given: Ends points of diameter are M(2,4) and N(9,4)

Mid point of M and N is center of circle.

Let center of circle be O(h,k)

Using mid point formula:

[tex[(x,y)\rightarrow (\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2})[/tex]

O(h,k)\rightarrow (\dfrac{2+9}{2},\dfrac{4+4}{2})

O(h,k)\rightarrow (\dfrac{11}{2},4)

Distance between O and M is radius of circle.

Let radius of circle be r

Using distance formula:

d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2

r=\sqrt{(\dfrac{11}{2}-2)^2+(4-4)^2=3.5

Standard equation of circle:

(x-h)^2+(y-k)^2=r^2

Equation of required circle:

(x-\frac{11}{2})^2+(y-4)^2=3.5^2

(x-\frac{11}{2})^2+(y-4)^2=12.25

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