App Detail » 20/20 Straight Line Equations

What's New

This version contains minor bug fixes.

App Description

A power learning aid combining Practice, Coaching Calculators, Coaching Videos and Guide to help students master finding slopes and equations of straight lines.

Coaching Calculators :

- finding slope given two points

- finding equation given a point and slope

- finding equation given two points

- finding equation given point and parallel line

- finding equation given point and perpendicular line

Choice of point-slope and slope-intercept methods when finding equations.

It's ideal for students as the design reinforces each problem solving step.

Examples highlight and simplify algebra that students find hard.

App Changes

• June 25, 2011 New version 2.1
• September 26, 2012 New version 2.2
• March 14, 2013 New version 3.0
• September 27, 2013 New version 4.0
• April 15, 2015 New version 5.0
• September 16, 2015 New version 5.1
• November 08, 2016 New version 6.0
• June 14, 2019 New version 6.3
• September 26, 2019 New version 6.4
• October 05, 2019 New version 6.5
• January 14, 2020 New version 6.6
• January 14, 2020 Price decrease: $0.99 -> FREE!
• January 28, 2020 New version 6.7
• January 28, 2020 Price increase: FREE! -> $0.99
• July 15, 2020 New version 7.0
• April 25, 2024 New version 7.6