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kordejah348
27.02.2021 •
Mathematics
Identify each graph as being a non-linear function, linear function, or not a function.
Explain your choices.
Graph A
Graph B
Graph C
3
3
2
4 +
2
I
1
3
1+
2+
++
2 3 x
-3 -2
-2
-1
1
1
2 3 3
1+
TS
-1
-1
1
Solved
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Ответ:
Graph B is the answer
Ответ:
you want it in the form
(x-a)^2+(y-b)^2=r^2 where (a,b) is the center and r is the radius hence the name standard center radius form.
dividing by 2 and rearranging
x^2-2x+y^2+6y=-3
by completing the square
x^2-2x+1+y^2+6y+9=-3+9+1
(x-1)^2+(y+3)^2=7
this is the standard radius center form (part b)
to get part a we multipy the equation by 2 to get
2(x-1)^2+2(y+3)^2=14 which is choice (2)