SOLUTION: Find an equation for the circle that is centred at the origin and a)has a radius of 3.7 b) has a radius of sqrt 8 c) has a diameter of 18 d) passes through the point (3,5)

Question 840199: Find an equation for the circle that is centred at the origin and
a)has a radius of 3.7
b) has a radius of sqrt 8
c) has a diameter of 18
d) passes through the point (3,5)
gracias
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
You did not specifiy the radius for part (d). Assuming radius is r,
is this circle.

Your other three questions rely on the standard form for a circle centered at (0,0), which is ;

(a)
-
(b)
-
(c)
-
Write the equations appropriately.
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