In order to utilize Jinx potential you have to understand what separates her from the other ADC's. Jinx Q ability provides a boost to your auto attack by turning it into a Cannon for 110% DMG and creates a splash effect in addition to this and more importantly it adds 75/100/125/150/175 range to your auto attack. Creating an amazing poke, Finisher, Gap closer. In additiona to that it does consume mana which is why making sure you have adequate mana at all times is necissary. Also the passive behind Q is just as amazing it can really turn you into the Carry you are supposed to be by adding Attack speed for each consecutive hit stacking up to 3 times for 50/70/90/110/130%

ZAP is a very powerful skill shot similar to Ezreals Q with a hint of Lucians W. it is a great gap closer and poke as well. ZAP is very dependant on Attack Damage it scales very well so it is important to build Attack Damage early and steer away from Attack Speed like some ADC's because your Attack Speed will primarily come from your Q passive ability.

E is probably one of the best things about Jinx although you will not focus on it after getting the first point it provides a great escape, gap closer, barrier. The ability throws out chompers that will not activate by minions but champions alone. So you can position it to keep champions away from getting Last hits, as well as prepare it positionally to keep an enemy from fleeing as easily. More importantly you can use it to get away. HOW these chompers will root any enemy for 1.5 seconds that crosses their path they do remain stationary.

Jinx Ultimate abilty is a great finisher, scales well with Attack Damage and provides the un endless range luxury that you see with Ezreal and Ashe. It will detonate on first enemy impact and deal 80% splash dmg to all nearby targets. If your snowballing well and you have an enemy around 40% it usually provides a kill.