Question

A circle is graphed with its center on the origin. The area of the circle is 144 square units. What are the coordinates of the x−intercepts of the graph? Round to the nearest tenth.

Answer 1

(6.8,0) and (-6.8,0)

Explanation:

Area = 3.14 × r² = 144

r² = 45.8598726115

Equation of the circle

x² + y² = 45.8598726115

x intercept is when y = 0

x² = 45.8598726115

x = + - 6.7719917758