Answer:
Attached is the sketch
X-axis intersections:
(-3,0)
(0,0)
(1,0)
Points of inflection:
(-1,319,-2.881) Concave upward
(0.569,1.041) Concave downward
Explanation:
Desmos (I'm not allowed to post the link, pls search it up) is a great help for these type of problems!