Question

Find the length of the radius of the following circle. x² + y² = 16 4 8 16

Answer 1

Graph

Find the properties of the conic section

x

2

+

y

2

=

16

.

Center:

(

0

,

0

)

Radius:

4

Explanation:

Answer 2

Please, when you present a list of numbers, such as 4, 8, 16, ..., separate them with commas or semicolons: 4, 8, 16, ...

If x^2 + y^2 = 16, then 16 represents r^2, and r = 4. r cannot be negative in this type of problem.