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Program: LINES

LINES  (free version available here)

  • Finds the equation of a line, given any of the following pieces of information:  slope and y-intercept, slope and point, 2 points, x-intercept and y-intercept, point and slope of parallel line, point and slope of perpendicular line.
  • Changes the equation of a line from slope-intercept form to standard form or the reverse.

Useful for:

  • SAT
  • ACT
  • Algebra 1
  • Algebra 2
  • Geometry
  • Calculus

How to download and run TI-84 Plus programs

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Try these problems using LINES:
on MathPro Q&A Forum


       SCHEDULE
MathPro Q&A Forum.
(Free version has options 1-3 only.)
Get this program
Example 1

Q: Find the equation of the line that passes through the points (6,-3) and (2,1).

Solution:

Run LINES.  How?

Select choice 3.





Type each number
as follows, pressing
ENTER after each one:



The program reports:








Interpretation:   y = -x + 3  or  x + y = 3

See Example 2