on the coordinate system below carefully skecth the graph the soultion set of
in graphing the first inequality carfully plot and label the vertex of the parabola
for y<1/3x^2+2x-5 first draw the curve y=1/3x^2+2x-5 and the region below the curve represents y<1/3x^2+2x-5 Do you understand why ?
for 3y-4x<=-2 rewrite this as this as y<=4/3x-2/3 now this a just a region below a line
Use this visual aid, your solution is the darkest blue area.