Question

9. Jenna graphed a circle centered at the (-3, 4). If the circle that Jenna graphed, also
contains (2, -8), then what is the value of the radius of the circle?

Answer 1

The radius of the circle is the distance between the center and the point on the circle

The radius of the circle is 13 units

How to determine the radius

The given parameters are:

Center = (-3,4)

Point = (2,-8)

The radius is the distance between the points.

So, we have:

$r = \sqrt{(-3-2)^2 + (4 --8)^2}$

Evaluate

$r = \sqrt{169}$

Solve

$r = 13$

Hence, the radius of the circle is 13 units

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