Wednesday
March 29, 2017

Post a New Question

Posted by on .

What are the equations of the circles tangent to the x-axis, of radius 4 and whose center is at (-2,y)

Please help, how do I solve this problem?

  • Analytic Geometry - ,

    Since (-2,0) must be on the circle , (it is tangent to that point)
    y must be either 4 or -4

    first case: y = 4
    centre is (-2,4) radius is 4

    equation: (x+2)^2 + (y-4)^2 = 16

    you try the other circle with centre (-2,-4)

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question