Finding a formula for an exponential function from a table

Equation of an exponential function, 🍎 If you enjoy my videos, then you can click here to subscribe https://www.youtube.com/blackpenredpen?sub_confirmation=1 🏬 Shop math t-shirt & hoodies: https://teespring.com/stores/blackpenredpen 💪 Patreon: https://www.patreon.com/blackpenredpen 😎 (non math) IG: https://www.instagram.com/blackpenredpen ☀️ Twitter: https://twitter.com/blackpenredpen Blue Microphone: https://amzn.to/2DAbHYL Expo Markers (black, red, blue): https://amzn.to/2T3ijqW