Me with this problem! y = 37 39 51

Which system of linear inequalities is represented by the graph? x-3y > 6 and y? 2x + 4 x + 3y > 6 and y? 2x - 4 x - 3y > 6 and y? 2 - 4 x + 3y > 6 and y > 2x + 4 no be 2 -1.1 1 2 3 4 5 submit save and exit next mark this and retum be

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)

Y= 4x + 3 y = - 1 4 x - 5 what is the best description for the lines represented by the equations?