Slopes and Angles (2)

Use the sliders (or input boxes) to change the slopes of lines j and k so they become perpendicular.
Same directions as above, yet this time create a pair of slopes that's different from the pair you discovered above.
Same directions as above, yet this time create a pair of slopes that's different from the pair you discovered above.
Check out the pairs of slopes you have in the apps above. List them below:
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Notice anything interesting? If so, describe. What exactly causes the lines to be perpendicular?
Font sizeFont size
Very smallSmallNormalBigVery big
Bold [ctrl+b]
Italic [ctrl+i]
Underline [ctrl+u]
Strike
Superscript
Subscript
Font color
Auto
Justify
Align left
Align right
Align center
• Unordered list
1. Ordered list
Link [ctrl+shift+2]
Quote [ctrl+shift+3]
[code]Code [ctrl+shift+4]
Insert table
Remove Format
Insert image [ctrl+shift+1]
Insert icons of GeoGebra tools
[bbcode]
Text tools
Insert Math
Close
– Tim Brzezinski

Information: Slopes and Angles (2)