# 查看完整版本 : 中學程度數學題目分享（locus and property of circle)

## 中學程度數學題目分享（locus and property of circle)

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Question 14 equation of circle

A circle R pass through point F (2,8) , and point G(6,8) is center of circle R. A straight line y=5 intersects the circle R at two points named point A and point B. Then a quartic equation pass through point A and the point G as well as the point G being a turning point of quartic equation.

a.     Find the equation of R.
b.     Write down the coordinate of point A and B.
c.     Estimate value of a,h and k of quartic equation.
d.     By graphing method , solve the inequality f(x) > 5.

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Question 14 equation of circle

A circle R pass through point F (2,8) , and point G(6,8) is center of circle R. A straight line y=5 intersects the circle R at two points n ... [/quote]

quadratic equation : a(x-h)^2 + k