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Mitchi35

  • one year ago

I am now having a hard time with graphing a circle. I get the process of knowing how to get the coordinates, and the radius to graph it. It's just the graphing part that I am having a difficult time with. Help please?

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  1. Mitchi35
    • one year ago
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    I need help with 1, and 5.

  2. dakid88
    • one year ago
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    Since the radius is 5, I can find my four points by moving 5 points in any direction?

  3. dakid88
    • one year ago
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  4. Mitchi35
    • one year ago
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    That's a good question, but I have no idea. sorry.

  5. Mitchi35
    • one year ago
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    Or maybe i guess starting with the center points that are already given. Is where you could find the other points?

  6. Nnesha
    • one year ago
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    just substitute (h,k) for the center point into the general equation r is radius plot the center point radius would be the same for left/right/up/down|dw:1443802057472:dw|

  7. Nnesha
    • one year ago
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    |dw:1443802213761:dw|

  8. Mitchi35
    • one year ago
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    One sec. I'm tryin to understand what you just put.

  9. Mitchi35
    • one year ago
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    Alright well. Can you help me if it's not too much to ask on how to do question 5? It's a little different from question 1.

  10. Nnesha
    • one year ago
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    well the questions are the same difference is they already replace h,k with center point in first question

  11. Nnesha
    • one year ago
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    \[\huge\rm (x-h)^2+(y-k)^2=r^2\] general equation center at (-4,2) r=5 sub (h,k) for (-4,2) and r for 5

  12. Nnesha
    • one year ago
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    |dw:1443803124096:dw| here draw a point at (-4,2)

  13. Mitchi35
    • one year ago
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    |dw:1443803216013:dw|

  14. Mitchi35
    • one year ago
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    ops. Meant to label it.

  15. Nnesha
    • one year ago
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    hmm (-4,2)

  16. Nnesha
    • one year ago
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    first number represent x-coordinate

  17. Mitchi35
    • one year ago
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    What? I did. Negative 4 and positive 2 right? On the graph the point should be there right?

  18. Nnesha
    • one year ago
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    no it's -4,2 not (2,-4) -4 is x 2=y

  19. Mitchi35
    • one year ago
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    Omg. Oohhhhh. Yeah. Should have warned you, math is not my forte. Obviously.

  20. Nnesha
    • one year ago
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    oh well you're pretty good 't it

  21. Nnesha
    • one year ago
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    |dw:1443804021187:dw|alright draw a point at (-4,2)

  22. Mitchi35
    • one year ago
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    |dw:1443804222203:dw|

  23. Mitchi35
    • one year ago
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    (-4,2)

  24. Nnesha
    • one year ago
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    right ! good now draw radius 5 unit up left /right and down|dw:1443804506829:dw| now we can draw a circle

  25. Nnesha
    • one year ago
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    5 units from the center up/down/left/right

  26. Nnesha
    • one year ago
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    make sense ? :=)

  27. Mitchi35
    • one year ago
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    Yes ma'am!/sir. Thank you very much!

  28. Nnesha
    • one year ago
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    np :=) good luck!

  29. Hero
    • one year ago
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    Find your four points on the circle, and the center point of the circle. Then use a protractor to draw the circle.

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