At What Points Is the Given Function Continuous?
- $$f ( x , y ) = \sqrt { 2 x + 7 y }$$

Multiple Choice

At what points is the given function continuous?
- $$f ( x , y ) = \sqrt { 2 x + 7 y }$$

A) All (x,y)
B) All (x,y) such that $2 x + 7 y \geq 0$
C) All $( x , y )$ such that $2 x + 7 y \neq 0$
D) All $( x , y )$ such that $x + y \geq 0$