Question 919640
{{{y <=-x}}}
{{{y > =-3x}}}



{{{ graph( 600, 600, -10, 10, -10, 10, -x,  -3x) }}}


if {{{y <=-x}}}, shade

{{{ graph( 600, 600, -10, 10, -10, 10,y <= -x,  -3x) }}}

if {{{y > =-3x}}}, shade

{{{ graph( 600, 600, -10, 10, -10, 10, -x, y > = -3x) }}}


solution:

{ {{{x>0}}}, {{{-3x<y<=-x}}} }

together, common area to shade is the area between lines from {{{0}}},{{{0}}}) up in IIth quadrant (white area on graph below)



{{{ graph( 600, 600, -10, 10, -10, 10, y <=  -x,y > =-3x ) }}}