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

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

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 …

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 …

If we want to write a linear function that represents this, the first thing to discuss is what you want x and y to be. The question tells us that y should be the account's value, and x should be the …

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 …

The Algebra 1 course, often taught in the 9th grade, covers Linear equations, inequalities, functions, and graphs; Systems of equations and inequalities; Extension of the concept of a …

For example, given f (x) = 2 x + 1 , the expression 2 x + 1 works as instructions on what to do with the input x . In this case, the input x is multiplied by 2 , then 1 is added to the product.