Question

A circle with center (4, -5) is tangent to the Y-axis in the standard (x, y) coordinate plane. What is the radius of this circle?​

Answer 1

Answer:

4

Step-by-step explanation:

The circle will intersect the Y-axis at (0,-5)

So calculate the distance between these two points that results in the radius

Answer 2

Answer:

y = -5 and it touches the circle at this point so the radius will be x as the center is 4 , -5

so the radius is 4 cm