A. center in ~ ns origin:
B.

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facility at (h, k):

example A: Graph:

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Solution:Go into ns equation right into Y= by resolving because that y.
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Get in the Optimistic squto be root right into Y1.Enter the negati have squto be root right into Y2, or Go into the negative of Y1.If you pick ZOOM #6 (ns typical window), ns graph will certainly show up to be an ellipse rather than a circle because of the 3/2 aspect ratio that ns viewinns display (the typical viewinns screen ins not a square).pick ZOOM#5 ZSquto be come develop a viewinns home window wright here the units ~ above both axes are ns exact same length.
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instance B:
Graph:

Solution:Get in ns equation into Y= by solving for y.

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Go into the equatitop top with the Confident square source into Y1.Enter the equation through the negati have square root right into Y2. Friend cannot ssuggest negate Y1 come obtainY2 in this problem.select ZOOM#5 ZSquto be to produce a viewing home window wright here ns systems on both axes are ns exact same length.

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Systems using DRAW: (please follow measures in order)push ZOOM#4 (ZDecimal) to go to a graphing screen.to graph the circle, press 2nd PRGM (DRAW) #9 Circle.move the cursor to ns "h" value that +2 by using ns arrows.move the cursor to ns "k" worth that +1 by making use of the arrows.press Go into come collection the allude for the facility the ns circle.relocate ns cursor ns length of the radiuns (1) amethod from ns center. Keep monitor the the values at ns bottom of the window.when friend hit ENTER, the a will be immediately drawn.you might need a bigger home window if her radiuns is large. (Zoom Out)
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Tidbit:girlfriend deserve to use a "list" technique come address the pluns and minus square roots:

Graph:

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which becomes