(-2,4)
(−23,43)
(23,−43)
(2, -4)
Correct answer is C
The equation for a circle with centre coordinates (a, b) and radius r is
(x−a)2+(y−b)2=r2
Expanding the above equation, we have
x2−2ax+a2+y2−2by+b2−r2=0 so that
x2−2ax+y2−2by=r2−a2−b2
Taking the original equation given, 3x2+3y2−4x+8y=2 and making the coefficients of x2 and y2 = 1,
x2+y2−4x3+8y3=23, comparing, we have
2a=43;2b=−83
⟹a=23;b=−43
The equation of the line of best fit for variables x and y is y=19.33+0.42x, where x is the ...
Evaluate \frac{1}{1 - \sin 60°}, leaving your answer in surd form....
If 36, p, \frac{9}{4}, q are consecutive terms of an exponential sequence (G.P.). Find the sum o...
Given that q = 9i + 6j and r = 4i - 6j, which of the following statements is true?...
If x^{2} - kx + 9 = 0 has equal roots, find the values of k....
The velocity v ms^{-1} of a particle moving in a straight line is given by \(v = 3t^{2} - 2t + 1...
Given that f: x --> x^2 - x + 1 is defined on the Set Q = { x : 0 ≤ x < 20, x...