Question

Choose the correct answer :

The point that lies on the circle (X - 2)^2 + Y^2 = 13
(a)(2,3)
(b)(3,-2)
(c)(2,5)
(d)(4,3)
the answer and why ?

Answer 1

(x + 2)² + Y = 13
(x - 2)(x - 2) + y = 13
x² - 4x + 4 + y = 13
Making sure to rearrange to the following: y = ax² bx +c

∴ y = -x² + 4x + 9
Factorize

Hope this helped :)