Question 553079
Use a graphing calculator, graph the pair of functions 
y = square root[49-(x-2)^2] and 
y = -square root[48-(x-2)^2]

{{{graph(400,400,-10,10,-10,10,sqrt(49-(x-2)^2), -sqrt(49-(x-2)^2))}}}
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a. identify the conic section represented by the graph
circle 
b. write its equation in standard 
And the multiple choice is "b" 
a. circle;(x+2)^2+y^2=49
b. circle;(x-2)^2+y^2=49
c. ellipse;(x-2)^2/(4)+(y^2)/(49)=1
d. ellipse;(x-2)^2(49)+(y^2)/(4)=1
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Cheers,
Stan H.