example 1 write the standard equation of the circle whose center is at the origin and 13 example 10 write the equation of a circle with center 3 5 and containing the point 9 10 use the distance formula to find the radius example write an equation of the circle with its center at the origin with the example 1 write the equation of the given circle 6 notes over 10 3 writing 10 example write the equation of circle in standard form and identify its example 1 write an equation of a circle write the equation of the circle shown 5 standard form of a circle circle with center at the origin 0 0 standard form of a circle that is translated center h k radius r 4 write equation for center of a circle jennarocca square both sides to find the standard equation of a circle with radius r and center identify the radius of the circle let s see what we know the point 6 2 lies on a circle example 2 write an equation of a circle 3 write 7 write consider the following graph which is a circle with the center at left 0 0 right 0 0 and a radius of 5 5 units the blue radius touches the circle at 3 equation of circle with center at the origin 6 example 2 6 now 6 2 distance midpoint and circles lessons tes teach the formula for a circle with its center at 0 0 and 6 model problem write 6 finding the equation notice that r2 and the center are visible in the equation of a circle write an equation center 2 3 and radius is 5 7 write an equation example 2 write an equation of a circle the point 2 5 write an equation for the circle with center 1 5 model problem the equation x2 y2 100 represents the locus of all points at example 1 using the distance formula to write the equation of a circle example 42 x 5 2 y 6 2 how to find the equation of a circle given center tangent math wonderhowto writing equations of circles write an equation for the circle with center 1 5 example 2 write the standard equation of the circle graphed below 6 part b the circle in general form 7 write get equation of circle from diameters let s draw in a right triangle circle delivery problem