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Graphing Circles

Graphing Circles. Viviana C. Castellón East Los Angeles College MEnTe Mathematics Enrichment through Technology. Standard form of an equation of a circle. where (h,k) is the center of the circle and r is the radius. General from of the equation of a circle.

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Graphing Circles

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  1. Graphing Circles Viviana C. Castellón East Los Angeles College MEnTe Mathematics Enrichment through Technology

  2. Standard form of an equation of a circle where (h,k) is the center of the circle and r is the radius

  3. General from of the equation of a circle where a, b, and c are variables

  4. Graphing a circle whose equation is in general form Since the equation given is in the general form, completing the square will be used. By completing the square, the equation can then be set-up in the standard form of an equation of a circle therefore, identifying its center and radius.

  5. Center (3,-1) Radius 1 Since the radius = 1, use the center (3,-1) as a reference point and then move 1 point to the left, right, up and down.

  6. Graph the following equation

  7. Center (-3,-2) Radius 2 Since the radius = 2, use the center (-3,-2) as a reference point and then move 2 points to the left, right, up and down.

  8. Graph the following equation

  9. Center Radius 1 Since the radius = 1, use the center as a reference point and then move 1 point to the left, right, up and down.

  10. Graph the following equation

  11. Recall: 8 was obtained when multiplied by 2 and 4

  12. Center Radius Since the radius = , use the center as a reference point and then move point to the left, right, up and down.

  13. Congratulations!!You just completed Graphing Circles

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