Linear Vs Non-Linear

When we talk about Machine Learning and Deep Learning, terms that we frequently come across is linear and non linear functions. Although, we would have studied this in our high school math, there will be at least a handful of them like me who would like to brush up on these mathematical terminologies. We'll cover how they look on a graph, and how you can tell them apart when they're written as equations. Algebraic tools allow us to express functional relationships very efficiently; to find the value of one thing (such as the gas price) when we know the value of the other (say number of gallons); and display a relationship visually in a way that allows us to quickly grasp the direction, magnitude, and rate of change in one variable over a range of values of the other. For simple problems such as determining gas prices, existing knowledge of multiplication will usually allow us to calculate the cost for a specific amount of gas, once we have the price per gallon (say $2).