Please Find the critical points - maximum, minimum and inflection points of the following functions and draw the curve using graphing paper or computerized graphing. For better viewing of graph, adjust the scale along x axis bigger than along y axis.

Exercise # 9 Curve Tracing Find the critical points maximum, minimum and inflection points of the following functions and draw the curve using graphing paper or computerized graphing. For better viewing of graph, adjust the scaie along x axis bigger than along y axis. 1. y=x33x2+1 2. y=(1/3)x3x23x+4 3. y=x34x2+4x1 4. y=x36x2+9x+1