|
The standard equation for The standard equation for the graph of a circle The standard equation for the graph of a circle is (x-h)2 + (y-k)2 = r2 Standard equation for circle (x-h)2 + (y-k)2 = r2 not (x-h)2 + (y-k)2 = r2 The center of the circle The center of the circle is (h,k) The center of the circle so for the equation (x+2)2 + (y-3)2 = 9 is (h,k) The center of the circle so for the equation (x+2)2 + (y-3)2 = 9 is (h,k) the center is The center of the circle so for the equation (x+2)2 + (y-3)2 = 9 is (h,k) the center is (-2 The center of the circle so for the equation (x+2)2 + (y-3)2 = 9 is (h,k) the center is (-2, 3) The center of the circle so for the equation (x+2)2 + (y-3)2 = 9 for the equation (x-1)2 + (y+6)2 = 25 is (h,k) the center is (-2, 3) The center of the circle so for the equation (x+2)2 + (y-3)2 = 9 for the equation (x-1)2 + (y+6)2 = 25 is (h,k) the center is (-2, 3) the center is The center of the circle so for the equation (x+2)2 + (y-3)2 = 9 for the equation (x-1)2 + (y+6)2 = 25 is (h,k) the center is (-2, 3) the center is (1, The center of the circle so for the equation (x+2)2 + (y-3)2 = 9 for the equation (x-1)2 + (y+6)2 = 25 is (h,k) the center is (-2, 3) the center is (1,-6) FInd the centers (x+4)2 + (y-5)2 = 4 (x-2)2 + (y-5)2 = 4 (-4,5) ? (2,5) ? (x-6)2 + (y+2)2 = 4 x2 + (y+8)2 = 4 (6,-2) ? (0,-8) ? The radius of the circle The radius of the circle is the square root of the last number The radius of the circle is the square root of the last number the radius of (x-2)2 + (y-5)2 = 25 The radius of the circle is the square root of the last number the radius of (x-2)2 + (y-5)2 = 25 is 5 The radius of the circle is the square root of the last number the radius of (x-3)2 + (y+6)2 = 9 the radius of (x-2)2 + (y-5)2 = 25 is 5 The radius of the circle is the square root of the last number the radius of (x-3)2 + (y+6)2 = 9 the radius of (x-2)2 + (y-5)2 = 25 is 3 is 5 Find the radius (x-4)2 + (y+5)2 = 49 (x-2)2 + (y-5)2 = 16 7 ? 4 ? (x-2)2 + y2 = 7 (x+1)2 + (y+6)2 = 4 √7 ? 2 ? To graph a circle, To graph a circle, like this one To graph a circle, like this one (x-11)2 + (y-3)2 = 4 To graph a circle, like this one (x-11)2 + (y-3)2 = 4 find the center and radius To graph a circle, like this one (x-11)2 + (y-3)2 = 4 find the center and radius Center (11,3) To graph a circle, like this one (x-11)2 + (y-3)2 = 4 find the center and radius Center (11,3) radius = 2 To graph a circle, like this one (x-11)2 + (y-3)2 = 4 find the center and radius Center (11,3) then graph the center radius = 2 To graph a circle, like this one (x-11)2 + (y-3)2 = 4 find the center and radius Center (11,3) then graph the center radius = 2 To graph a circle, like this one (x-11)2 + (y-3)2 = 4 find the center and radius Center (11,3) then graph the center radius = 2 To graph a circle, like this one (x-11)2 + (y-3)2 = 4 find the center and radius Center (11,3) then graph the center radius = 2 To graph a circle, like this one (x-11)2 + (y-3)2 = 4 find the center and radius Center (11,3) then graph the center radius = 2 then use the radius to graph four points on the circle To graph a circle, like this one (x-11)2 + (y-3)2 = 4 find the center and radius Center (11,3) then graph the center radius = 2 then use the radius to graph four points on the circle Down 2 To graph a circle, like this one (x-11)2 + (y-3)2 = 4 find the center and radius Center (11,3) then graph the center radius = 2 then use the radius to graph four points on the circle Up 2 To graph a circle, like this one (x-11)2 + (y-3)2 = 4 find the center and radius Center (11,3) then graph the center radius = 2 then use the radius to graph four points on the circle Left 2 To graph a circle, like this one (x-11)2 + (y-3)2 = 4 find the center and radius Center (11,3) then graph the center radius = 2 then use the radius to graph four points on the circle Right 2 To graph a circle, like this one (x-11)2 + (y-3)2 = 4 find the center and radius Center (11,3) then graph the center radius = 2 then use the radius to graph four points on the circle (x-5)2 + (y+4)2 = 9 (x-5)2 + (y-4)2 = 9 (x-4)2 + (y-5)2 = 9 (x+4)2 + (y+5)2 = 9 (x-5)2 + (y+4)2 = 9 (x-5)2 + (y-4)2 = 9 (x-4)2 + (y-5)2 = 9 (x+4)2 + (y+5)2 = 4 |