GARIS TEGAK LURUS

Author:: Mardia Hayati, GeoGebra Team

Topic:: Algebra, Difference and Slope, Geometry, Straight Lines

What does it mean for lines to be perpendicular (by definition)?

Reposition line f below so that its slope becomes 4/3. Then slowly slide the slider you see all the way to the right.

If the slope of line f = and line g is perpendicular to line f, what is the slope of line g? If you forget how to find the slope of a line by inspection, click here for a quick reminder.

Select all that apply

Check my answer (3)

Reposition line f below so that its slope becomes -2/5. Then slowly slide the slider you see all the way to the right.

If the slope of line f = and line g is perpendicular to line f, what is the slope of line g? If you forget how to find the slope of a line by inspection, click here for a quick reminder.

Select all that apply

Check my answer (3)

Notice anything interesting between slopes of perpendicular lines drawn in the coordinate plane? If so, please describe.

GARIS TEGAK LURUS

Reposition line f below so that its slope becomes 4/3. Then slowly slide the slider you see all the way to the right.

Reposition line f below so that its slope becomes -2/5. Then slowly slide the slider you see all the way to the right.

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