The equation of a circle is (x - h)^2 + (y - k)^2 = r^2
x and y are left alone in a circle equation, while h and k are the coordinates of the center.
Thus, our equation is (x - 7)^2 + (y + 2)^2 = 61
Answer:
Step-by-step explanation:
Change into improper fraction

Answer:
depends what are they
Step-by-step explanation:
Here's infinity minus 1.

If you don't like that, here's 1,153,300,781,250.

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Please note that according to the order of operations, the only denominator value is the first box after "÷".
To find the quadratic of the form ax^2+bx+c=y set up a system of equations with the points provided...
a+b+c=4, 0a+0b+c=3, a-b+c=-6 getting differences:
a+b=1, -a+b=9 and getting difference again:
2a=-8, so a=-4, making a+b=1 become:
-4+b=1, so b=5, making a+b+c=4 become:
-4+5+c=4, so c=3
thus the quadratic that produces those three points is:
y=-4x^2+5x+3
...
The vertex occurs when the velocity is equal to zero, the derivative of the quadratic...
dy/dx=-8x+5, dy/dx=0 when x=5/8=0.625
Then you can find y(5/8)=4.5625
So the vertex is (0.625, 4.5625)
Or you may wish to remember that the vertex will always be:
(-b/(2a), (4ac-b^2)/(4a)) (this can be derived from conservation of energy under constant acceleration or the vertex form of the quadratic)
The axis of symmetry will be the vertical line about the x-coordinate of the vertex, in this case:
x=0.625