Linear Functions

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If you're reviewing linear functions, all the online resources you need are right here—from online calculators, to step-by-step video tutorials, to worksheets with sample linear functions to practice on. They're completely free, so try one today.
i need help in 2 problems i did one of them just need to make sure they are correct and one is left unanswered which i need help on

Find the equation of the line perpendicular to y=(-2/3)x+5 and passes through (-2, 2)

A helpful scientific calculator that runs in your web browser window.

Excellent site showing examples of algebra, trig, calculus, differential equations, and linear algebra.

Video Lesson how to identify, solve, and graph linear systems.

Some worked example problems that point out many common errors students make when solving them.

I have to graph using the x and y intercept method; -4x+y=8. I have put in slope intercept form and got y=4x+8. I have my slope as 4 and the y-int 8. I am not sure how to graph this. Could you please help?

This interactive online tool enables students to simultaneously visualize and manipulate three linked representations of a distance-rate-time problem. The side-by-side tool format features two airplanes (each flying at a constant speed) on merging jet routes, the corresponding distance-vs.-time graphs, and the corresponding linear equations.

Description of what a linear function is.

Description of direct variation and the constant of variation; with a graph and related question

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