Find the equation of a circle passing through two points with a radius of 4

Circle formula:  (x - h)² + (y - k)² = r²   ; where (h,k) is the vertex & "r" is the radius

Since the radius is 4,    (x - h)² + (y - k)² = 4²   →   (x - h)² + (y - k)² = 16

1) If you have two points, replace "x" and "y" with the coordinates to create two equations with unknown variables "h" and "k".  

2) Then solve the system to determine the value of "h" and "k".

3) Input the values of "h", "k", and "r" into the Circle Formula.

a. turk and mcalister

b. howard, mission, and market

c. yes. since streets end some do not cross yet are not parallel to others. example: mcalister and 5th

step-by-step explanation:

parallel lines are lines which do not intersect ever and look a lot like railroad tracks. turk, mcalister and golden gate are examples of these.

intersect are streets which cross each other and a car on one can reach the other. howard, mission, and market intersect with 6th.

skew lines are lines which neither intersect nor are parallel. these lines exist here because some streets end and never intersect another like mcalister and 5th.