x >= 4
Draw a solid vertical line through x = 4 and shade to the right.
y >= -6
Draw a solid horizontal line through y = -6 an shade above.
The correct answer is A.
[tex] \left\{\begin{array}{ccc}x\geq4\\y\geq-6\end{array}\right [/tex]
Draw a vertical line x = 4 and shade right /blue/
Draw a horizontal line y = -6 and shade up /red/
Answer: A
