This topic covers: - Intercepts of linear equations/functions - Slope of linear equations/functions - Slope-intercept, point-slope, & standard forms - Graphing linear equations/functions - Writing linear …

When distances, prices, or any other quantity in our world changes at a constant rate, we can use linear functions to model them. Let's learn how different representations, including graphs and equations, …

Practice Up next for you: Solutions to 2-variable equations Get 3 of 4 questions to level up!

Linear equations word problems: volcano Linear equations word problems: earnings Modeling with linear equations: snow Linear function example: spending money Fitting a line to data

Sal solves an interesting application problem using a linear model. Created by Sal Khan and Monterey Institute for Technology and Education.

The standard form for linear equations in two variables is Ax+By=C. For example, 2x+3y=5 is a linear equation in standard form. When an equation is given in this form, it's pretty easy to find both …

This topic covers: - Evaluating functions - Domain & range of functions - Graphical features of functions - Average rate of change of functions - Function combination and composition - Function …

When we encounter an algebraic function, we can find the value of the function at specific inputs. For example, for f (x) = 2 x + 1 , we can calculate f (2) , the output of the function f when its input, x , is …

Learn to recognize if a function is linear. Created by Sal Khan and Monterey Institute for Technology and Education.

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.