Graph x < -9 explain how you got your answer

The graph shades the area below the line x=-9

Step-by-step explanation:

Assume the inequality specifies a rule for selecting points on the plane, and the general form of the inequality would be

a x + b y < c

So a=1 b=0 c=-9

The set being graphed is

{(x,y) ∊ (ℝ,ℝ) | x < -9}

The set of all of pairs (x,y) of real numbers such that x is less than -9.

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,