Discrete Laundry
Someone wants half a laundry cycle for half price; a graph shows only $0 and $1.50 are possible.
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Free for classrooms, worksheets, slides and other non-commercial use under CC BY-NC 4.0, with credit to Ben Orlin.
Cartoon by Ben Orlin, Math with Bad Drawings. https://cartoons.mathwithbaddrawings.com/2018-10-01-discrete-laundry/ (CC BY-NC 4.0)Transcript
A: "Do you have 75 cents? I need to do laundry." B: "You know it costs $1.50, right?" A: "Yeah, but my clothes aren't that dirty."
B: "Um, laundry machines only perform integer numbers of cycles." [Graph: cleanliness vs. dollars, just two points (dirty at $0, clean at $1.50) with the line between labeled "NOT POSSIBLE"]
A: "I HATE DISCRETE MATH"