Factor completely, then place the factors in the proper location on the grid. x2 - 2x - 24

(x - 6)( x +4 ) = 0
x = 6
x = -4

X^2 - 4x +(4/2^2) + y^2 + 8y + (8/2^2) = -4 + (4/2^2) + (8/2^2)(x + 2)^2 + (y + 4)^2 = -4 + 4 + 16your center is (-2, -4) and the radius is the sqrt of -4 + 4 + 16 which is 4

Answer d; a supplementary angle = 180°, so if that angle = 150°, y would = 30°.