Egads, why hand-draw a graph like that when there is Desmos?
https://www.desmos.com/calculator/f61mxuqurc [update]
https://www.desmos.com/calculator/aqhcs63r2e [first version]
https://www.desmos.com/calculator/f61mxuqurc [update]
https://www.desmos.com/calculator/aqhcs63r2e [first version]