Write the standard equation of a circle with center (-9,-4) and radius 15.

(x + 9) 2 + (y + 4) 2 = 5

(x + 4) 2 + (y + 9) 2 = 5

(x - 4) 2 + (y - 9) 2 = 5

(x - 9) 2 + (y - 4) 2 = 5

Question

Mathematics

Conor Lyons

5 October, 01:57

Write the standard equation of a circle with center (-9,-4) and radius 15.

(x + 9) 2 + (y + 4) 2 = 5

(x + 4) 2 + (y + 9) 2 = 5

(x - 4) 2 + (y - 9) 2 = 5

(x - 9) 2 + (y - 4) 2 = 5

+5

Answers (1)

Know the Answer?

Chance Petty · Answer 1

Equation of a circle:

radius = the sq. rt of (x - h) ^2 + (y - k) ^2

Plug in the values for the center of a circle and the radius:

15 = the sq. rt of (x + 9) ^2 + (y + 4) ^2

(x + 9) ^2 + (y + 4) ^2 = 225

The answer is A or the first one.

Write the standard equation of a circle with center (-9,-4) and radius 15.(x + 9) 2 + (y + 4) 2 = 5(x + 4) 2 + (y + 9) 2 = 5(x - 4) 2 + (y - 9) 2 = 5(x - 9) 2 + (y - 4) 2 = 5

Write the standard equation of a circle with center (-9,-4) and radius 15.

(x + 9) 2 + (y + 4) 2 = 5

(x + 4) 2 + (y + 9) 2 = 5

(x - 4) 2 + (y - 9) 2 = 5

(x - 9) 2 + (y - 4) 2 = 5