If a function f os defined such that f(x+3) = f (x) + f(3), show that f(-3) = -f(3)

I’m which figure is point g an orthocenter

How is the equation of this circle written in standard form? x2 + y2 - 6x + 14y = 142 a) (x - 3)2 + (y + 7)2 = 200 b) (x+ 3)2 + (y - 7)2 = 200 (x - 6)2 + (y + 14)2 = 142 d) (x+6)2 + (y- 14)2 = 142

Divide reduce the answer to lowest term 3/7 divided 1 1/6