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Lesson 10.7. Write and Graph Equations of Circles. Standard Equation (x-h) 2 + (y-k) 2 = r 2 (h,k) is the center of the circle r is the radius of the circle. Write the standard equation of a circle Center (0,0) and radius 2.5 Center (-2,5), radius 7. Solve.
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Lesson 10.7 Write and Graph Equations of Circles
Standard Equation (x-h)2 + (y-k)2 = r2(h,k) is the center of the circler is the radius of the circle • Write the standard equation of a circle • Center (0,0) and radius 2.5 • Center (-2,5), radius 7
Solve • The point (3,4) is on a circle whose center is (1,4). Write the standard equation of the circle.
Graph • (x-4)2 + (y+3)2 = 16
Homework • 2-24 even