For students who learn analytic geometry, this app shows relations between different forms of line equations. Line is entered primarily by touch in coordinate system, and related parameters of each equation are appropriate updated. Of course, line parameters in equation can be entered by keyboard, and graph is changing appropriately. Covered following line related topics:

• General (Standard) form of line
• Slope-Intercept form of line
• Intercept (Segment) form of line
• Point and Slope form of line

Great to understand equation notation and visual representation of straight line. For easier understanding, graphics elements in coordinate system are color-coded with related equation parameters. Useful for check homework answers. Aimed for secondary school students, to get acquainted with basic elements of analytic geometry in plane. Reminder for university students.


Paid version includes following functionality:

• Line defined by two points
• Angle between two lines given in Normal form
• Angle between two lines given in Slope-Intercept form
• Perpendicularity conditions of two lines
• Parallelism conditions of two lines
• Intersection between two lines
• Distance between point and line
• Distance between two points