Expand your control over the coordinate plane by learning how to apply restrictions on the domain and range of expressions, functions, and relations.
Goal: Use eight expression lines to graph the rectangle (four points, four line segments) shown below.
Note: Be sure to add restrictions (domain or range) to limit the segments.
Goal: Use six expression lines to graph the triangle (three movable points, three line segments) shown below.
Hint: Use some “min” and “max” magic on your domain restrictions so that the line segments remain visible regardless of where you drag the movable points.
Goal: Use four expression lines to create purple rain (and green grass).
Hint: I used a list, a linear function with a sinusoidal domain restriction, a slider (the rain needs to fall from the sky, after all), and an absolute-value heavy sinusoid (for the grass).
Note: Don’t worry about matching the image perfectly on this one. Just make it rain!
Get ’em here.
Use what you’ve learned about restrictions to create your own amazing graph. Share it here.
(Need some help with how to share a graph? Check out 11 Challenges: Saving and Sharing (#9).)