(x – 1)2 + (y + 3)2 = 73 What is the radius ? Question (x – 1)2 + (y + 3)2 = 73 What is the radius ? in progress 0 Math Kennedy 1 week 2021-11-18T14:31:55+00:00 2021-11-18T14:31:55+00:00 2 Answers 0 views 0

## Answers ( )

Answer:radius =

Step-by-step explanation:The equation of a circle in standard form is

(x – h)² + (y – k)² = r²

where (h, k) are the coordinates of the centre and r is the radius

(x – 1)² + (y + 3)² = 73 ← is in standard form

with r² = 73 ( take the square root of both sides )

r =

Answer: 73 – the radius