Move the entire half of the line that lies below x = 0, make it positive. The resulting graph will look like a sharp parabola
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Answer:
x = 1/4(y -4)² +7
Step-by-step explanation:
A parabola can have the equation ...
x = 1/(4p)(y -k)² +h
where the vertex is (h, k), and the vertex-to-focus distance is p.
The vertex is halfway between the focus and directrix, so has coordinates ...
((8, 4) +(6, 4))/2 = (7, 4)
The distance from the vertex to the focus is 8-7 = 1, so the equation can be written ...
x = 1/4(y -4)² +7
Its about finding the equation of a circle from its general form equation:
x^2 + y^2 + 8x - 4y - 61 = 0
x^2 + 8x + 16 + y^2 - 4y + 4 = 61 + 16 + 4
(x + 4)^2 + (y - 2)^2 = 81
therefore the center is C(-4, 2), and the radius is 9
Answer:
120.45
Step-by-step explanation:
replace x with 3√3
(3 √3)³ - 3 √3(3 √3) - 8 = 120.45
I hope this helps you
A=(a+b).h/2
2A=(a+b).h
2A/h=a+b
a=2A/h-b
a=2A-b.h/h