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What is the radius of a circle whose equation is (x + 5)^2 + (y – 3)^2 = 42? 1. 2 units 2. 4 units 3 .8 units 4. 16 units
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4 votes
What is the radius of a circle whose equation is (x + 5)^2 + (y – 3)^2 = 42?

1. 2 units
2. 4 units
3 .8 units
4. 16 units

User Unskilledidiot
by
7.7k points

2 Answers

4 votes

Answer:

4 units

Explanation:

User Anthony Horne
by
7.5k points
0 votes
the equation of a circle centered at point (x1,y1) with a radius r is given by


(x-x_1)^2 + (y-y_1)^2 = r^2

are you sure you wrote down the problem correctly?
User Georgy Ivanov
by
7.8k points
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