About this unit A function is like a machine that takes an input and gives an output. Let's explore how we can graph, analyze, and create different types of functions. Unit guides are here! Power up your …

Functions assign a single output for each of their inputs. In this video, we see examples of various kinds of functions.

Learn Intro to slope Positive & negative slope Worked example: slope from graph Graphing a line given point and slope Calculating slope from tables Worked example: slope from two points

We've seen linear and exponential functions, and now we're ready for quadratic functions. We'll explore how these functions and the parabolas they produce can be used to solve real-world problems.

Use the vertical line test to determine if the graph is a function. If you can draw a vertical line anywhere in the coordinate plane and the line only crosses the graph once, then the graph is a function.

A piecewise function is a function built from pieces of different functions over different intervals. For example, we can make a piecewise function f (x) where f (x) = -9 when -9 < x ≤ -5, f (x) = 6 when -5 < …

A piecewise function is a function that is defined in separate "pieces" or intervals. For each region or interval, the function may have a different equation or rule that describes it. We can graph a …

- [Instructor] In this video, we're gonna do a few examples finding domains of functions. So let's say that we have the function f of x is equal to x plus five over x minus two.

Sal uses function notation to help Frank figure out how much water he can put in his balloon.

This function right over here, the valid inputs, I want to be able to input an integer. In fact, it's not even all integers, because he can't go down an arbitrary amount.